Texas instruments BA-35 SOLAR Quick Reference Guide

BA-35 Solar Quick Reference Guide

Table of Contents

General Information The Display Arithmetic Operations Correcting Errors Display Formats Memory Operations Math Operations Percentage Calculations Percentage Change Calculations Margin and Markup Calculations Compound Interest Calculations Annuity Calculations Converting to EFF or APR Balance, Interest, and Principal Statistics

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Common Keystroke Sequences Error Conditions In Case of Difficulty

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TI Product Service and Warranty

Information

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2 4 6 7 8

9 10 12 13 14 16 18 23 24 27 30 35 37

General Information

Turning the Calculator On and Off

(All Clear/On)

This key also clears the display, all pending operations, and values in memory or the mode registers.

The calculator turns off automatically when the solar cell panel is no longer exposed to light.

Modes

The calculator can operate in three different modes. Setting the calculator to a particular mode prepares it to perform special functions. The available modes are statistics, financial, and profit margin.

Indicators in the display tell you the calculator's current mode. STAT displays for statistics, FIN for financial. No indicator is displayed for profit margin mode.

—Changes the calculator to the next

mode in sequence. To set the calculator to a particular mode, press 2 repeatedly until the appropriate indicator is displayed.

Changing to a new mode clears the contents of the mode registers.

You can do arithmetic, mathematical, and percentage operations in any mode.

—Turns on the calculator.

Second Functions

(Second Function)

perform the “second” functions that are marked over some of the keys. To perform a second function, press 0 and then the appropriate function key.

When you press 0, display until you press another key.

If you press 0 and then a key that does not have a second function, the key performs its normal function. If you accidentally press 0, press it again to cancel its effect.

Clearing the Calculator

(All Clear/On)

completely, including the display, all pending operations, and the memory and mode registers. Pressing u also sets the calculator to floating-decimal format and financial mode

(Clear Entry/Clear)

entries, error conditions, the display, or pending operations. It does not affect the memory, the mode registers, or the display format.

0 b

values that have been stored in the mode registers.

Note:

contents of the mode registers.

(Clear Mode Registers)

Changing to a new mode also clears the

—Enables you to

2nd

appears in the

—Clears the calculator

—Clears incorrect

—Clears any

The Display

The display shows a maximum of 10 digits, although the calculator internally retains a maximum

Display Indicators Indicator Meaning

FIN The calculator is in the

STAT The calculator is in the

Begin The calculator computes

of 13 digits.

nd The calculator will access the

second function of the next key pressed (appears when you press 0).

financial mode.

statistics mode.

Note:

No indicator displays when the calculator is in profit margin mode.

annuities as be period payments rather than end-of-period payments. (Displayed only in the financial mode.)

inning-of-

(continued)

Indicator Meaning

InDep The displayed result is for

Dep The displayed result is for

prn The value in the display is

int The value in the display is

the independent variables (x values). (Displayed only in the statistics mode.)

the dependent variables (y values). (Displayed only in the statistics mode.)

the summed principal over a

e of payments.

ran (Displayed only in the financial mode.)

the principal for a sin payment. (Displayed only in the financial mode.)

the summed interest over a

e of payments.

ran (Displayed only in the financial mode.)

the interest for a sin payment. (Displayed only in the financial mode.)

Arithmetic Operations

Entering Numbers

(Digits)

- ?

You can enter a maximum of 10 digits and a decimal point.

(Decimal Point)

(Change Sign)

number in the display. To enter a negative number, first enter the number as a positive value and then press @.

Arithmetic Keys

p, o, n, m

operations of addition, subtraction, multiplication, and division.

(Equals)

and displays the result of a calculation.

—Enter digits into the display.

—Enters a decimal point. —Changes the sign of the

—Perform the arithmetic

—Completes all pending operations

Correcting Errors

Correcting Entry Errors

(Clear Entry/Clear)

entry, press - once; then enter the correct number. To clear all pending operations and begin the calculation again, press - twice.

(x Exchange y)

of x and y. If you enter x and y in the incorrect order, press w to reverse them. Then complete the calculation.

(Backspace)

decimal point from the displayed number if you have not yet pressed an operation key (p, o,

, etc.). This key is useful for correcting

n, m

entry errors without having to clear the display and start again.

Correcting Immediate Functions

You can often correct an immediate function by performing the “reverse” operation. For example, if you press 0 ] by mistake, you can correct the operation by pressing 0 k.

—To clear a numerical

—Exchanges the values

—Removes the last digit or

Display Formats

Floating-Decimal Format

The calculator normally displays numbers in “standard” floating-decimal format, in which numbers are displayed in the range

9,999,999,999 to -0.000000001, 0, or

0.000000001 to 9,999,999,999. If the result of a calculation is too large or too small to be displayed in the normal format, it is displayed in scientific notation. This means the result is expressed as a base value (mantissa) times 10 raised to a power (exponent). For example, 5.9 12 means 5.9 x 10

The calculator is always in floating-decimal format when you turn it on. By changing the display format, you can convert a number from one format to another.

(Fixed Decimal)

0 c

the number of decimal places displayed in a result.

To set the number of decimal places, press

0 c

key (6-?).

To remove the fixed-decimal setting and restore floating-decimal format, press

c A

If a result has more than the selected number of decimal places, the displayed number is rounded. If a result has fewer than the selected number of decimal places, trailing 0s are added.

—Enables you to set

and then press the appropriate digit

Memory Operations

The memory can store any numeric value within the range of the calculator. You can use the calculator’s memory to store, sum, and recall a numeric value. You can use the memory in any mode.

(Store)

value in the memory, replacing any value previously stored there. When 0 is displayed, you can clear the memory by pressing r, thereby storing a zero in memory.

to the contents of the memory. To add a series of numbers to the memory, use

any previous value). Then use t with the remaining numbers. Use s 0 P to display the total.

To subtract the displayed value from the value in memory, press @ (to change the sign of the displayed value) and then press t. Use

0 P

s 0 P

(recalls) the number stored in memory, without affecting the contents of the memory.

—Stores the displayed numeric

(Sum)

—Adds the displayed numeric value

to store the first number (thereby replacing

to display the total.

(Recall Memory)

—Displays

Math Operations

(Reciprocal)

0 \

reciprocal of the displayed number, which is the same as one divided by the number.

(Square)

0 ]

number to the second power, which is the same as multiplying the number by itself. The number can be any value whose square is in the range of the calculator.

(Square Root)

0 k

root of the displayed number. The displayed number must be positive or zero; otherwise, an error condition occurs. The result is always positive.

(Universal Power)

0 H

positive number to any power within the range of the calculator or calculates any root of any positive number within the range of the calculator.

To calculate a power:

1. Enter the number (y) that you want to raise to a power.

2. Press 0 H.

3. Enter the power (x).

4. Press l or any key that completes the operation.

—Calculates the

—Raises the displayed

—Calculates the square

—Raises any

To calculate a root:

1. Enter the number (y) whose root you want to find.

2. Press 0 H.

3. Enter the root (x).

4. Press 0 \.

5. Press l or any key that completes the operation.

(Natural Logarithm)

0 G

natural logarithm (base e = 2.718281828459) of the displayed number. The number must be positive; otherwise, an error condition occurs.

(Natural Antilogarithm)

0 ^

the natural antilogarithm of the displayed number. This is equivalent to the value of e raised to the power of the number in the display.

—Calculates the

— Calculates

Percentage Calculations

(Percent)

add-ons, discounts, and percentage ratios.

Operation

Percentage

dd-On

Discount

Percentage Ratio

—Calculate percentages,

Key Sequence Function

n E

Calculates n% of the principal amount.

Calculates n% of the principal amount and adds the result to the principal.

Calculates n% of the principal amount and subtracts the result from the principal.

Divides the principal amount by n%.

Percentage Change Calculations

(Percent Change)

0 4

percentage change between two values. To calculate the percentage change:

1. Enter the new value.

2. Press 0 4.

3. Enter the old value.

4. Press l.

The percentage change is calculated by the formula:

New value - Old value

Old value

If the result is positive, there is a percentage increase. If the result is negative, there is a percentage decrease.

—Calculates the

x 100

Margin and Markup Calculations

To calculate cost, selling price, gross profit margin, or markup, use 2 to set the calculator to the profit-margin mode (no display indicator).

(Cost)

which is the difference between selling price and cost expressed as a percentage of the

selling price

0 Z

the difference between selling price and cost expressed as a percentage of the

If the percentage is positive, the selling price is greater than the cost. If the percentage is negative, the selling price is less than the cost.

unknown value for gross profit margin problems and markup problems.

Recalling Values

To recall a value that you have entered or computed, press s and the appropriate key for the value you want to recall. For example, to recall the value for margin, press s U.

—Enters the cost.

(Selling Price) (Margin)

(Markup)

(Computation Key)

—Enters the selling price.

—Enters the gross profit margin,

—Enters the markup, which is

cost

—Computes the

Performing Gross Profit Margin Calculations

To calculate cost, selling price, or gross profit margin:

1. Press 0 b to clear the registers and use 2 to enter the profit margin mode (no display indicator).

2. Enter the two known values (CST, SEL, or MAR).

3. Press 1 and the key for the unknown value.

Performing Markup Calculations

To calculate cost, selling price, or markup:

1. Press 0 b to clear the registers and use 2 to enter the profit margin mode (no display indicator).

2. Enter the two known values (CST, SEL, or MU).

3. Press 1 and the key (or key sequence) for the unknown value.

Compound Interest Calculations

To calculate compound interest, use 2 to set the calculator to the to the financial mode

FIN

(

appears in the display).

In compound interest calculations in which no payment is involved, the payment (PMT) is assumed to be zero. When the payment has a value other than zero, the calculator treats the problem as an annuity (a series of regular, equal payments).

Compound Interest Keys

In compound interest calculations, the following keys are used to enter or calculate the values listed below.

—Total number of compounding periods.

—Percent interest per compounding period.

—Present value of a future amount. With a

savings account, for example, PV represents what your money is worth today.

—Future value of a present amount. With a

savings account, for example, FV represents what your money will be worth in the future.

(Computation Key)

unknown value for compound interest problems

—Computes the

Recalling Values

To recall a value that you have entered or computed, press s and the appropriate key for the value you want to recall. For example, to recall the present value, press s K.

Performing Compound Interest Calculations

To perform a compound interest calculation, you must know any three of the four values (N, %i, PV, or FV). Follow these steps to find the unknown value:

1. Press 0 b to clear the registers and use 2 to enter the financial mode ( appears in the display).

2. Enter the three known values (N, %i, PV, or FV).

3. Press 1 and the key for the unknown value.

For compound interest calculations, the payment (PMT) must be zero. This value is set automatically when you press 2 to enter the financial mode or when you clear the financial registers.

FIN

Annuity Calculations

For annuity calculations, use 2 to set the calculator to financial mode ( display).

An annuity is a series of equal payments made at regular time periods with interest calculated at the end of each period. Ordinary annuities have end-of-period payments; annuities due have beginning-of-period payments.

(Beginning-of-Period)

0 a

calculator to compute for annuity-due problems (beginning-of-period payments).

Pressing 0 a causes the display. The beginning-of-period function is in effect until you cancel it (by pressing 0 again) or leave the financial mode.

Note:

beginning-of-period payments, be sure that

Begin

the answer. Having effect on compound interest calculations in which no payment is involved.

Begin

When solves using beginning-of-period payments.

When calculator solves using end-of-period payments.

If an annuity problem does

is not in the display before you compute

is in the display, the calculator

Begin

is not in the display, the

FIN

appears in the

—Sets the

Begin

to appear in

Begin

in the display has no

not

use

Annuity Keys

In annuity calculations, the following keys are used to enter or calculate the values listed below.

—Total number of payment periods.

—Percent interest per payment period.

—Present value of a series of payments plus

the present value of FV. With a savings account, PV represents an initial deposit (not including the first payment). With a loan, PV represents the loan amount.

—Amount of the regular payment. This

value may be positive or negative, depending on the type of problem you are solving (as explained on page 20).

—Future value of a series of payments plus

the future value of PV. With a savings account, FV represents the final amount withdrawn. With a loan, FV represents any balloon payment that must be made in addition to the last regular payment.

Computation Key)

(

unknown value for annuity problems.

Begin

When computes the unknown value for ordinary annuities (annuities with end-of-period payments).

Begin

When computes the unknown value for annuities due (annuities with beginning-of-period payments).

—Computes the

is not displayed, the 1 key

is displayed, the 1 key

Annuity Calculations

Recalling Values

To recall a value that you have entered or computed, press s and the appropriate key for the value you want to recall. For example, to recall the present value, press s K.

Positive or Negative Payments

In annuity problems, the present value and future value are usually positive numbers. The payment amount may be positive or negative, depending on the type of problem you are solving.

If payments are discounted backward, the payment amount is positive. This is the case in mortgage, loan, bond, and lease problems.

These problems have a present value, but they may or may not have a future value. (If there is no future value, FV=0.)

If payments are compounded forward, the payment amount is negative. This is the case in savings problems.

These problems have a future value, but they may or may not have a present value. (If there is no present value, PV=0.)

(Continued)

Performing Annuity Calculations

To perform an annuity calculation, you must know any four of the five values (N, % i, PV, PMT, or FV). Follow these steps to find the unknown value:

1. Press 0 b to clear the registers, and use 2 to enter the financial mode ( appears in the display).

2. Ensure that the calculator is set correctly for the type of annuity calculation desired.

For ordinary annuities, be displayed.

For annuities due, displayed.

Press 0 a to turn

3. Enter the four known values (N, % i, PV, PMT, or FV).

4. Press 1 and the key for the unknown value.

Note:

Generally, solving for the interest rate requires more time than other calculations. If you use unrealistic values, the calculator may take several minutes before indicating an error condition. If this occurs, press u to clear the calculation.

Begin

should be

on or off.

FIN

should not

Annuity Calculations

Special Functions for Monthly Compounding or Payment Periods

0 h

(Monthly Interest)

number in the display by 12 and displays the result. This number can then be stored as the monthly interest rate (%i). To use the 0 key sequence:

1. Enter the annual interest rate for a

compound interest or annuity problem.

2. Press 0 h. Then press I to store the result. The two steps above have the same effect as

entering the number of years and then pressing

12 l.

0 i

(Number of Monthly Payments)

Multiplies the number in the display by 12 and displays the result. This number can then be stored as the number of compounding periods or payment periods (N). To use the 0 i key sequence:

1. Enter the number of years for a compound

interest or annuity problem with monthly compounding or payment periods.

2. Press 0 i. Then press C to store the result. The two steps above have the same effect as

entering the number of years and then pressing

12 l.

(Continued)

—Divides the

—

Converting to EFF or APR

To convert to EFF or APR, use 2 to set the calculator to the financial mode ( the display.)

Annual Percentage Rate (APR)

rate per compounding period multiplied by the number of compounding periods per year.

Annual Effective Rate (EFF)

rate compounded yearly that achieves the same future value as the APR. The EFF is the rate at which you actually earn for the period of time stated.

(APR to EFF)

0 N

percentage rates to annual effective rates.

1. Enter the APR.

2. Press 0 N.

3. Enter the number of compounding periods

per year (c/yr) for the APR.

4. Press

0 O

effective rates to annual percentage rates.

1. Enter the EFF.

2. Press 0 O.

3. Enter the number of compounding periods

per year (c/yr) for the APR.

4. Press l to calculate the APR.

to calculate the EFF.

(EFF to APR)

FIN

appears in

—The interest

—Converts annual

Balance, Interest, and Principal

To calculate balance, interest and principal, use

to set the calculator to the financial mode

FIN

(

appears in the display.)

(Balance)

balance (principal) after a selected payment. To find the balance:

1. If necessary, press 0 a to change the

calculator to solve for end-of-period payments or beginning-of-period payments.

2. Enter the appropriate values with the C, I,

K, L

3. Enter the payment number.

4. Press W.

(Interest and Principal

interest and principal portions of a payment; when used with the X key, it calculates the accumulated interest and principal over a

(Payment Range Entry Key)

selected range of payments (payment 1 through payment x) so that you can calculate the accumulated interest and principal over that range.

Note:

number as an integer.

point.

—Calculates the remaining loan

, and M keys.

)—Calculates the

single

range

of payments.

—Enters a

When using X, enter the payment

Do not enter a decimal

Calculating a Single Payment

To find the interest and principal of a single payment

1. If necessary, press 0 a to change the

calculator to solve for end-of-period payments or beginning-of-period payments.

2. Enter the appropriate values with the C, I,

, and M keys.

K, L

3. Enter the payment number.

4. Press V to calculate the interest. (The

int

indicator is displayed with the result.)

5. Press w to display the principal. (The

prn

indicator is displayed with the result.)

If you want to display the interest portion again, press w. Pressing w alternately displays the interest and principal.

Balance, Interest, and Principal

Calculating a Range of Payments

To find the summed interest and principal over a range of payments:

1. If necessary, press 0 a to change the

calculator to solve for end-of-period payments or beginning-of-period payments.

2. Enter the appropriate values with the C, I,

3. Enter the first payment number (P1) and

4. Enter the second payment number.

5. Press V to calculate the interest.

6. Press w to display the principal.

If you want to display the interest portion again, press w. Pressing w alternately displays the interest and principal.

, and M keys.

K, L

press X.

(The

int

result.)

(The

prn

result.)

indicator is displayed with the

(Cont.)

Statistics

To enter a statistics problem, use 2 to set the calculator to the statistics mode ( appears in the display).

(Clear Mode Registers

0 b

previously entered data points.

(Statistics Data Entry)

displayed number as a data value in the statistical registers. Each time you press g, the display shows the number of data values currently stored in the statistical registers.

0 f

Removes a data value from the statistical registers. Each time you press 0 f, the display shows the number of data values currently stored in the statistical registers.

Entering Two-Variable Data Values

Use w in conjunction with g to enter data points with both x and y values as follows:

1. Enter an x value and press w.

2. Enter a y value and press g. Repeat the procedure to enter additional data

points. You can also follow this procedure with

0 f

(Statistics Data Removal

to remove data points.

—Enters the

STAT

)—Clears any

)—

Statistics

Mean

0 z

(average) of all the data values currently stored in the statistical registers.

If you have entered data points with x and y values, press 0 z to display the mean of the y values; then press w to display the mean of the x values.

Standard Deviation

The 0 y and 0 x key sequences calculate the standard deviation of the data values in the statistical registers.

If you entered data points with x and y values, press 0 y or 0 x to display the standard deviation of the y values; then press

values.

0 y

Calculates the “n weighted” (or “population”) standard deviation.

0 x

the “n - 1 weighted” (or “sample”) standard deviation.

(Continued)

(Data Mean)

to display the standard deviation of the x

(“Population” Deviation)

(“Sample” Deviation)

—Calculates the mean

—

—Calculates

Linear Regression

(Intercept/Slope)

0 {

display the y-intercept and slope of the representative line. To display the y-intercept (b), press 0 {; to display the slope (a), press w after you display the y-intercept.

(Correlation)

0 d

correlation between the x and y values in a set of data points.

0 T, 0 Q

enter an x value, you can press 0 Q to display the y value that corresponds with that x on the best straight line through the data points entered. Similarly, after you enter a y value, you can press 0 value.

(Predicted Value

—Enables you to

—Calculates the

)—After you

to display the corresponding x

Common Keystroke Sequences

Monthly Payment for a Home Mortgage

Purpose: To find the amount of the monthly payment on a mortgage with end-of-month payments (ordinary annuity).

Values You Supply:

mortgage

annual interest

number of

Procedure Key

Clear calculator and mode

isters; select two decimal

re places.

Press 2 until displayed.

Press 0 a until

not

displayed.* Enter mortgage amount. Calculate interest rate. Enter interest rate. Calculate number of payment

periods. Enter number of payment

periods. Compute monthly payment.

* If payments occur at the beginning of each

month (annuity due), press 0 a until

Begin

amount

rate

years

in mortgage

FIN

Begin

is displayed.

Sequence

- 0 b

0 c

0 a

mortgage rate

years

C 1 M

Remaining Balance for a Home Mortgage

Purpose: To find the remaining balance—after a selected payment number—of a mortgage with end-of-month payments (ordinary annuity).

Values You Supply:

mortgage

annual interest

number of

amount of

payment

amount

years payment

number

rate

in mortgage

Procedure Key

Sequence

Clear calculator and mode

isters; select two decimal

re places.

Press 2 until

FIN

displayed. Press 0

not

displayed.*

until

Begin

Enter mortgage amount. Calculate interest rate. Enter interest rate.

- 0 b 0 c

0 a

mortgage rate

Calculate number of payment periods.

years

Enter number of payment periods.

Enter payment amount.

payment

Enter payment number and calculate balance.*

number

* If payments occur at the beginning of each

month (annuity due), press 0 a until

Begin

is displayed.

Common Keystroke Sequences

Loan Amount a Buyer Can Afford

Purpose: To find the maximum loan amount and selling price a prospective home buyer can afford, assuming that:

The buyer will pay a given percentage of the selling price as a down payment.

An estimated percentage is added to the monthly payment for taxes and insurance.

The total monthly payment (principal, interest, taxes, and insurance) is not to exceed a predetermined percentage limit of the buyer's gross monthly income.

Values You Supply:

annual interest

number of

buyer's gross monthly

percent limit

percent taxes and Insurance

monthly payment)

percent down

Procedure Key Sequence

Clear calculator and mode re

wo decimal places.

Press 2 until

isplayed.

rate

in mortgage

years

(of gross monthly income)

isters; select

income

(of selling price)

FIN

(of total

- 0 b 0 c

(Cont.)

(continued)

Procedure Key Sequence

Press 0 a until

Begin

not

displayed.*

0 a

Enter monthly interest rate.

rate

0 h

Calculate and enter number of monthly payments.

Calculate and store maximum monthly payment.

Calculate and enter maximum allowable loan payment (without taxes

r insurance).

years

0 i

income

percent limit

l r

percent

taxes and insurance

0 \ n s 0 P l M

Compute maximum

llowable loan amount.

Calculate house price (includin

down

payment).

percent

down

E l 0 \ n s K l

Calculate down payment.

o s K l

Common Keystroke Sequences

Selling Price of a House if Seller Pays Points and Commission

Purpose: To find the selling price of a house, assuming that the seller wants to make a certain profit and that the selling price must include points and commission.

Values You Supply:

original price

profit

points

commission

Procedure Key Sequence

Clear calculator and mode re

wo decimal places.

Press 2 until no mode indicator is

isplayed.

dd original price and profit to calculate cost before points are added

n, and enter.

Enter points as a margin.

Compute selling price.

(dollar amount)

(percentage points)

isters; select

(Cont.)

- 0 b 0 c

original price

profit points

commission

U 1 S

Error Conditions

When an error condition occurs, the word “Error” appears in the display. The calculator will not accept a keyboard entry until you press

or u to clear the error condition.

(Press - twice to clear the condition and all pending operations; press u to clear the calculator completely.)

General Error Conditions

The error conditions listed below can occur in any mode. Errors occur when you:

Calculate a result that is outside the range

-9.999999 x 10

-99

to 9.999999 x 1099.

Divide a number by zero.

Calculate 0 G or 0 \ of zero.

Calculate 0 4 for an old value equal to

to -1 x 10

zero.

Calculate 0 k, 0 G, or 0 H of a negative number.

Use 0 H to raise zero to the power of zero.

Press a key or key sequence that cannot be performed in the current mode.

Financial Error Conditions

In the financial mode, errors occur when you:

Calculate a financial unknown before you have entered enough known variables or when no solution exists.

, zero, or 1 x

Error Conditions

(Continued)

Financial Error Conditions (Continued)

Use 0 O or 0 N when the number of compounding periods per year is zero or very large, or when %i is small.

Compute the balance or interest for a payment number less than zero.

Statistics Error Conditions

In the statistics mode, errors occur when you:

Use g to enter a data point (x or y) such that |x| > 1 x 10

Press 0 f when there are less than two

data points in the statistical registers.

Calculate 0 x with only one data point.

Perform a statistical calculation when there are no data points.

Perform a linear regression calculation with less than two data points.

Perform a linear regression calculation on a vertical line.

Enter a series of data values such that the sum of their squares exceeds the upper or lower limit of the calculator.

In Case of Difficulty

dig

If you have difficulty operating the calculator, you may be able to correct the problem with the solutions suggested in the table below.

Observation Action

Display is blank;

its do not

ppear.

function does not seem to

ork.

he number of ecimal digits

hat you expect

is not displayed.

n error occurs. Check the error conditions

If you experience difficulties other than those listed above, press u to clear the calculator, and then repeat your calculation.

Review the operating instructions to be sure that you are performing the calculation correctly.

The display durin Wait for it to finish.

Be sure the solar power cells are exposed to an adequate light source.

Be sure the calculator is set for the correct mode— profit margin, FIN, or STAT.

Be sure the display is set to the correct format— floating decimal or fixed decimal.

listed on pa

oes blank

a long calculation.

es 35-36.

TI Product Service and Warranty Information

TI Product and Services Information

For more information about TI products and services, contact TI by e-mail or visit the TI calculator home page on the world-wide web.

e-mail address: internet address:

Service and Warranty Information

For information about the length and terms of the warranty or about product service, refer to the warranty statement enclosed with this product or contact your local Texas Instruments retailer/distributor.

ti-cares@ti.com http://www.ti.com/calc

Texas instruments BA-35 SOLAR Quick Reference Guide

Specifications and Main Features

Frequently Asked Questions

User Manual