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).

--------------

GENERAL
- Two Algebraic Modes with Editable Equations
- Two RPN Modes with Undo Support and up to 100 Stack Registers
- A Basic Mode with all the Essentials
- Calculation History with 100 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
- Over 300 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

I'm just a lightweight and occasional user, but to me this the perfect app. It's simple to use, has a clean & straightforward format, and even has two choices of display. One display format is a basic 4-function arithmetical display & the other display format is a scientific display, with additional operations such as trigonometry and log functions, and other things I don't understand. There's even a units converter hidden in there, which I just noticed!

It's hard to believe more people don't use this terrific calculator! Not only is it full of features and very capable, it's beautiful. I use it in RPN mode, but it does algebraic equally as well. The price is ridiculously low and as a bonus, there are no internet permissions! Try the free version first if you're not sure, but consider the modest price of the plus version to support this great app and developer.

Fantastic app..... all key feel as a physical key. All the useful features have been compiled in a better way. A big hat 🎓 for developer. and most important it is free. I tried to donate (a small amount just for express my gratitude), but there isn't such a option found. It is also a great thing.

What’s new

Minor fixes and improvements.