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Command-Line RPN calculator

Command line tools that can take an expression as arguments or interactively.

Screenshot

General

The program takes inputs that are separated by space (or return in interactive mode). Inputs can be either numbers or a function. Functions can be stack manipulation or all of the common mathematical operations.

Examples

  • 2 + (-5): 2 -5 add
  • 3 / -1: 3 1 chs div
  • sqrt(9)^cos(3.4): 9 2 root 3.4 cos pow

Functions

Stack pushes

Funcions that pushes something into the stack.

Operation Syntax Description
Number number Will push a number into the stack
Rand rand, random Random number between 0 and 1
π pi
Euler's number e

System funcions

Operation Syntax Description
Quit q, quit, exit Quits the program
Print print, ls Prints the stack

Stack manipulation and memory

Operation Syntax Description
Swap swp, <>, ><, swap Swaps the x and y buffer
Roll down rld, roll, rolld, rolldown Rolls the stack down
Roll up rlu, rollu, rollup Rolls the stack up
Store sto, store Takes one argument that sets the storage location
Recall rcl, recall Pushes the numbes stored in a argument position

Stack drop

Functions that pops off the x and y buffers and pushes the product based on the function.

Operation Syntax Description
Add a, +, add, plus
Subtract s, -, sub, subtact, minus
Muliply m, *, mul, multiply, times
Divide d, /, :, div, divide, over
Power p, ^, **, pow, raised, expo, exponent
Modulus mod, modulus
Greatest common divider gcd
Logarithm log, logarithm The x buffer is the base
Root r, root The x buffer is the root

x buffer change

Funcions that takes what is stored in the x buffer and changes it. Trigonometric funcions returns number in radians.

Operation Syntax Description
Ceil cel, ceil
Floor flr,floor
Round rnd, round Rounds to nearest ingeger
Invert inv, inverse, invert 1 / x
Absolute value abs, absolute
Factorial fac, factorial
Change sign chs, changesign, chsign -x
Log base 10 log10
Log base 2 log2
Log base e ln, naturallogarithm
Squareroot sqrt, squareroot
Sine sin, sine
Cosine cos, cosine
Tangent tan, tangent
Cosecant asin, arcsin, cosecant
Secant acos, arccos, secant
Cotangent atan, arctan, cotangent
Convert to degrees deg, todeg, degrees
Convert to radians rad, torad, radians

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