Scientific Calculator Plus

CalcTastic

About this app

CalcTastic Plus is a feature-rich calculator with years of refinement and exceptional user ratings. Choose from 12 different themes, a configurable display and your choice of operation, Algebraic or RPN.

CalcTastic Plus includes two fully-independent modes:

- A high-precision Scientific Calculator with Fractions, Complex Numbers, Physical Constants, a Unit Converter, Advanced Statistics, History & Memory Registers and a full-online Help Section.

- A full-featured Programmers Calculator with a dedicated Binary Display, support for Signed & Unsigned Integers (from 8-64 bits) as well as separate History & Memory Registers (viewable in binary, octal, decimal or hex).

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GENERAL
- Two Algebraic Modes with Editable Equations
- Two RPN Modes with up to 50 Stack Registers
- A Basic Mode with all the Essentials
- Calculation History with 50 Records
- Memory with 10 Registers
- 12 High-Quality Themes
- Copy and Paste
- Configurable Numeric Display (Decimal and Grouping)
- Easier to use than many other Calculator Apps
- Quicker than locating your Casio & HP Calculator (11C / 15C)

SCIENTIFIC
- High Internal Precision
- Rectangular and Polar form Complex Number Support
- Real, Imaginary, Argument, Magnitude and Conjugate Functions
- Fractions and Fraction Calculations
- Convert Decimals to Fractions
- Degree, Minute, Second Support
- Standard, Scientific, Engineering and Fixed Decimal Notations
- Configurable Display Precision from 0 - 12 digits
- Table of 44 Physical Constants
- 289 Conversion Units across 18 Categories
- Trig Functions in Degrees, Radians or Grads
- Hyperbolic Trig Functions
- Natural and Base-10 Logarithms
- Percent and Delta Percentage
- Remainder, Absolute, Ceiling and Floor operations

STATISTICAL
- Factorial
- Combinations and Permutations
- Random Number Generator
- 15 Single-Variable Statistics
- Quantity, Min, Max, Range, Sum, Median
- Arithmetic Mean, Geometric Mean, Mean Squared
- Sum Squared, Sum of Squares of Variance
- Sample Variance, Sample Standard Deviation
- Population Variance, Population Standard Deviation

PROGRAMMER
- Binary, Octal, Decimal and Hexadecimal
- History viewable in all Four Bases
- Convert between Bases
- Signed and Unsigned Integers (8, 16, 32 and 64-Bit)
- Cast between Integer Sizes
- Dedicated Binary-Bit Display (and Toggle) for all 64-Bits
- Bitwise Logic Operations AND, OR, XOR
- Bitwise Shift Operations
- Roll Left and Right
- Byte and Word Flipping
- Ones and Twos Complement - Native interpretation is Twos Complement
- Random Number Generator

Ratings and reviews

Used this app for years. Probably close to a decade. Even through being a physics major in college. Absolutely loved it. New update is terrible. Switched to a weird font trying to be aesthetic instead of a normal, highly legible font. And the new button layout/sizing is a downgrade- not as functional. Not sure why any changes were made. With that being said. Will continue to see if it grows on me- I owe it to this old friend. But really wish I could revert to previous version...

My go-to calculator for several years. Basic, scientific, and programmer layouts with algebraic and RPN modes. Tons of functionality. A big screen that helps you with more complex calculations. A huge stack - up to 50 deep - more than you could possibly ever use. All this is wrapped in your choice of terrific themes that make it a real pleasure to look at, too. Zero internet permissions! The only thing I would change is to put this gem in the hands of more people. It's a great calculator!

After trying several calculators, this is the best I've found. I like the multi-line display and other features similar to a graphing calculator, but it's not as loaded down with features I never use, making it less cramped. It could use some improvements on a few things, which I've suggested to the dev. I give it 4 stars currently, but since it's by far the closest to what I was looking for, and the dev is very receptive and helpful, I'm giving it 5 stars overall.

What's new

Android's best all-around calculator just got better! Equations can now be edited, and results are calculated in real-time. Plus, lots of other improvements.