**Review: Victor 930-2 Scientific Calculator**
**Quick Facts**:

Model: Victor 930-2

Company: Victor

Type: Scientific

Years: 2008 to present

Display: 10 digits

Batteries: Solar with battery backup (LR43/LR1130)

Retail Price: $17.99

Logic: Algebraic, AOS

Number of Functions: 154

Product website from Victor:

https://www.victortech.com/product/930-2
**Powerful One Line Calculator - The 21st Century Version of the TI-34**
The Victor 930-2 calculator has the following features:

* Trigonometric functions and their inverses

* Rectangular/Polar Conversions

* Degrees/Degree-Minute-Second Conversions

* Logarithms, Power, Exponential

* Single Variable Statistics

* Base Conversions with Boolean Functions (AND, OR, XOR, XNOR, NOT)

* Constant Calculations

* Fractions

The keys have the same mapping as the original Texas Instruments (one line) TI-34 from the 1980s and 1990s. There are some keys and functions that are labeled differently:

Victor 930-2: [ X→M ], TI-34: [ STO ]

Victor 930-2: [ M+ ], TI-34: [ SUM ]

Victor 930-2: [ X←→M ], TI-34: [ EXC ]

Victor 930-2: [ INV ], TI-34: [ 2nd ]

Victor 930-2: [ DATA ], TI-34: [ ∑+ ]

Victor 930-2: [ DEL ], TI-34: [ ∑- ]

The Victor 930-2 has a bigger and clearer numeric display and an on-off switch.

Constant calculations is something that might be an overlooked feature on some of these calculators, so let's take a look at how it works. This applies to both the Victor 930-2 and the TI-34.

**Constant Calculations**
For selected two argument functions, you can repeat the calculations on the second argument by entering different values and pressing the equals button [=].

A (op) B [ = ]

C [ = ] ( C op B )

D [ = ] ( D op B )

...

op: +, -, ×, ÷, y^x, x√y, AND, OR

Example 1:

f(x) = x × π, x = 4, 3, 3.8

4 [ × ] [ INV ] [ EXP ] (π) [ = ]

Result: 12.56637061

3 [ = ] ×π is stored in memory

Result: 9.424777961

3.8 [ = ]

Result: 11.93805208

Example 2:

f(x) = x^2.5, x = π, 10.2, e

[ INV ] [ EXP ] (π) [ y^x ] 2.5 [ = ]

Result: 17.49341833

10.2 [ = ] ^2.5 is stored in memory

Result: 332.2771137

1 [ INV ] [ LN ] (e^x) [ = ]

Result: 12.18249396

Example 3:

B can be a multi-step in constant calculations.

f(x) = x ÷ (4^2 + 3), x = 10, 20, 50

10 [ ÷ ] [ ( ] 4 [ x^2 ] [ + ] 3 [ = ]

Result: 0.526315789

20 [ = ] ÷(4^2 + 3) or ÷19 is stored in memory

Result: 1.052631579

50 [ = ]

Result: 2.631578947

**Fractions**
You can enter fractions and calculate with fractions. However, you can only convert between fractions and decimals if you start with fractions in your calculations. The calculator has a limit of 10 digits between the whole part, numerator, and denominator.

**Keyboard**
The keyboard is OK. I like the contrast between the black background and the font better on the Victor 930-2.

I am irked by the protective case, as it is difficult to take the hard shell case off once the calculator is locked in place. I prefer the slide case of the TI-34. I may not cover the 930-2 and use a case or the box to protect the calculator.

**Verdict**
If you are looking for a TI-34, consider the Victor 930-2 as it is an updated version. It does the job. Again, I wish the hard shell case was easier to work with.

Eddie

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