Victor V30-RA Owner's Manual
Owner’s Guide
V30-RA Scientific Calculator
Preface
Congratulations on your purchase of the 930-2 scientific calculator from
Victor Technology. Victor has been serving customers since 1918. Today,
Victor offers a complete line of printing, handheld, desktop, scientific, and
financial calculators. For more information please see our website at
www.victortech.com
Victor: The Choice of Professionals
A Spanish version of this instruction manual is available at
or call us at 1-800-628-2420.
www.victortech.com.
Una version en español de este manual de instruccioñes esta´ disponible
en www.victortech.com
Copyright © 2008 by Victor Technology LLC
All rights reserved.
.
V30-RA SCIENTIFIC CALCULATOR
General Information
Your Victor V30-RA Scientific Calculator is made with 40% recycled plastic and an antimicrobial agent that prevents the growth of
microbes that cause odors and discoloration. The V30-RA has a large 10 digit display plus 2 digits for exponents.
Battery Replacement
The Victor V30-RA comes with two LR44 batteries which can be replaced by removing the (6) screws in the back of the unit.
Order of Operations
The Victor V30-RA uses the Algebraic Operating System or AOS to determine the order in which operations are performed. Based
on the complete equation, the calculator will use the following table to determine whether an operation is to be completed or delayed
based on its priorities.
st
Expressions inside parentheses.
1
nd
Single-variable functions that perform the calculation and display the result immediately.
2
rd
Permutations (nPr) and combinations (nCr).
3
th
Exponentiation and root functions.
4
th
Multiplication and division
5
th
Addition and subtraction
6
th
= / Enter closes all open parentheses and completes all operations.
7
Pi 3.141592653590
π (Pi) Pi is the ratio of the circumference of a circle to its diameter. Pi carries out many digit places beyond the decimal point;
though to accurately use in a calculation most people carry it out to 6 or 7 digits.
π = 3.141592654 on the display.
π = 3.141592653590 is used for calculations.
Notation and Decimal Selection
The V30-RA allows the user to choose between Decimal, Scientific, and Engineering notation depending on the users need.
nd
[2
] [FIX] Decimal notation mode menu.
nd
] [FLO] Floating Notation (default mode), in floating notation mode, there are numbers before and after the decimal.
[2
nd
[2
] [SCI] Scientific Notation uses an exponent to express large and small numbers in a convenient manor.
nd
[2
] [ENG] Engineering Notation is a form of scientific notation, but the power of 10 (exponent) must be a multiple of 3.
[EE] Used to enter an exponent. To enter a negative exponent, press [-] before entering the exponent.
Fractional Calculations
The Victor V30-RA allows the user to calculate mixed and improper fractions, with the results given as mixed fractions.
b
/c] Used to enter a mixed or improper fraction.
[a
Improper fraction (a/b)
a (numerator)→ [a
Mixed fraction (a
a(integer) → [a
nd
[2
] [F↔D] Is used to convert between fractions and decimals.
nd
[2
] [ab/c↔d/e] Is used to convert between mixed numbers and simple fractions.
Example: You want to add 2
Enter:
b
[2] [ a
/c] [1] [ ab/c] [8]
[+]
b
[3] [ a
/c] [4]
[=]
b
/c]→b (denominator)
b
/c):
b
/c]→ b (numerator)→ [ab/c]→c (denominator)
1
/8 to ¾ and after getting the answer, you would like to convert the mixed fraction to a decimal number.
Display:
2 _ 1 _, 8
2 _ 1 _, 8
3 _, 4
2 _ 7 _, 8
Angles
[DRG] To specify the Angle mode in degrees, radians, or gradients.
Example: Press the [DRG] key and the bottom of the display will rotate through “DEG”, “RAD”, and “GRD”.
After you see the mode you would like to activate, stop.
[DMS] Is used to enter degrees (
This will also let the user convert an angle to DMS Notation using [2
°), radians (
r
), gradients (g), or Degrees, Minutes, Seconds or DMS (DMS).
nd
] [→DMS].
Trigonometric Functions
[SIN] Sine Key
[COS] Cosine Key
[TAN] Tangent Key
-1
[SIN
] Arc Sine Key [2nd] [SIN]
-1
[COS
] Arc Cosine Key [2nd] [COS]
-1
[TAN
] Arc Tangent Key [2nd] [TAN]
To perform Hyperbolic (HYP) functions on a trigonometric key, press [HYP] before pressing the trigonometric key.
Statistical and Probability Keys
[nPr] Calculates the number of possible permutations of n items taken at r time, given n and r.
[nCr] Calculates the number of possible combinations of n items taken r at a time, given n and r.
[x!] Factorials, the product of the positive integer from 1 to n.
[δx] Standard deviation of x.
[∑x] Sum of x values.
2
[∑x
] Sum of x2 values.
[ξ] Mean of all x values.
[n] Number of x data points.
Function Keys
[LN] Natural Logarithm Key
x
] Exponential Function Key
[e
2
] Square Key
[x
[1/x] Reciprocal Key
[10x] Common Exponential Key
[√] Square Root Key
3
[x
] Cube Key
3
[
√] Cubic Root Key
[x!] Factorial Key
Clearing and Correcting
[ON/C] Clears the entry if pressed once and clears all if pressed twice.
[←] Clears the first digit on the far right of the display, then you may enter a new
Digit.
Operation Examples:
Addition and Subtraction
5 + 5 + 10 + 3.5 = 23.5
25 – 8 - 7.5 = 9.5
[5] [+] [5] [+] [10] [+] [3.5] [=]
23.5
[25] [-] [8] [-] [7.5] [=]
9.5
Multiplication and Division Calculations
4 X 8 = 32
100 ÷ 20 = 5
[4] [x] [8] [=]
32
[100] [÷] [20] [=]
20
Mixed Calculations
6 + 4 x 5 = 26
10 x 4 + 15 ÷ 3 = 45
Fractional Calculations
1 ½ + 2 ¾ + 5 7/8 = 10 1/8
To convert this Fraction to a decimal
number, press the [2
nd
] [F↔D].
[6] [+] [4] [x] [5] [=]
26
[10] [x] [4] [+] [15] [÷] [3] [=]
45
b
[1] [a
/c] [1] [ab/c] [2] [+] [2] [ab/c] [3] [ab/c] [4] +
b
/c] [7] [ab/c] [8] [=]
[5] [a
10-1¬8
10.125
Fixed Decimal Setting
The Victor V30-RA allows the user to set the number of digits to the right of the decimal that will be
displayed in the answer.
User wants answers to carry out to
the third digit after the decimal:
15.12345 + 5.3758 = 20.499
nd
[2
] [FIX]
0.
[3]
0.000
[15.12345] [+]
15.123
[5.3758] [=]
20.499
If the user decides after seeing their answer they would like to see the answer carried out further,
nd
press [2
] [FIX] [6], and in the above example, they answer would be carried out to 20.499250.
Percentage Calculations
To find the percentage of a number:
13% of 800 = 104
To add a percent to a number:
1500 + 10% = 1650
To subtract or discount a percentage:
199.99 - 15% = 169.9915
Ratio of a number:
Ratio of 200 to 50 = 400
[800] [x] [13] [2
nd
] [%]
104
[1500] [+] [10] [2
nd
] [%]
150 [=]
1650
[199.99] [-] [15] [2
nd
] [%]
29.9985 [=]
169.9915
[200] [÷] [50] [2
nd
] [%]
0.5 [=]
400
Reciprocal Calculation
[2] [x] [3] [+] [4] [=] [1/x]
0.1
Square, Square Root, Powers, and Root Calculations
To find the square root of a number:
√
= 22
484
To find the square of a number:
2
55
= 3025
Raising a number to a power:
4
15
= 50625
Multiple Root Key
2
√
= 12
144
To find the cube of a number:
3
15
= 3375
To find the cubed root of a number:
3
√
= 8
512
[484] [√
]
x
22
2
[55] [x
]
3025
x
[15] [y
] [4] [=]
50625
[144] [2
nd
] [
x
√y] [2] [=]
12
nd
[15] [2
] [x3]
3375
[512] [2
3
nd
] [
√x]
8
Degrees Minutes Seconds
To convert Degree Minutes Seconds
to a decimal degree:
111.2551 → 111.4308333
To convert a decimal degree to
Degree Minutes Seconds:
8.1258 → 8°07’32”88
To complete a calculation using a DMS value, it needs t be converted to a decimal first using
nd
[2
] [ DD→DMS].
[111.2551] [2
nd
] [DMS→DD]
111.4308333
nd
[8.1258] [2
] [DD→DMS]
8°07’32”88
Angles
To convert an angle-unit setting
between Degrees, Radians, and
Grads:
Convert 90˚ to Radians, Grads, and
back to Degrees.
[90]
nd
[2
] [DRG>]
1.570796327
nd
[2
] [DRG>]
100
nd
[2
] [DRG>]
90
Logarithmic Function Calculations
To find the common logarithm of a
number:
LOG 150 = 2.176091259
To find the natural logarithm of a
number:
LN 150 = 5.010635294
[150][LOG]
2.176091259
[150][LN]
5.010635294
Exponential Functions
15
e
= 3269017.372
4.5
10
= 31622.7766
nd
][ex]
[15][2
3269017.372
nd
[4.5][2
][10x]
31622.7766
Constants and Repeated Operations (K)
The Victor V30-RA allows the user to store a value and operation that is going to be used
repeatedly using the Constant (K) function.
The user needs to add 75 to several
values:
100 + 75 = 175
200 = 275
[100] [+] [75] [2
nd
] [K] [=]
175
[200] [=]
275
K
K
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