CalcTastic 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 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.

CalcTastic is also a full-featured Programmer's 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
- Algebraic (Prefix or Postfix) or RPN Calculator Modes
- Expression or Stack Display
- Expression History with 20 Records
- Calculator Stack with 20-50 Registers
- Memory with 10 Registers
- 12 High-Quality Themes
- Copy and Paste
- Configurable Numeric Display (Decimal and Grouping)
- Intuitive long-click feature removes the need to press SHIFT
- Easier to use than traditional Casio or HP calculators (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 commands operate on all stack entries
- 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 display and conversions
- 100% support for all common integer-sizes (8, 16, 32 and 64 bit)
- Every integer-size is supported in both SIGNED and UNSIGNED modes
- Calculation History viewable in all four bases
- Cast from any integer-size to any integer-size
- Dedicated binary-bit display for all 64-bits
- Instant access to toggle any binary bit
- Bitwise logic operations AND, OR, XOR
- Bitwise shift operations (correctly differentiates between SIGNED and UNSIGNED right shifts)
- Roll Left and Right for quick number entry
- 1's and 2's complement. Native interpretation is 2's complement
- Byte and Word flipping
- Random Number Generator