76
GitHub - simonsolnes/rpn: Command-Line RPN Calculator
source link: https://github.com/simonsolnes/rpn
Go to the source link to view the article. You can view the picture content, updated content and better typesetting reading experience. If the link is broken, please click the button below to view the snapshot at that time.
Command-Line RPN calculator
Command line tools that can take an expression as arguments or interactively.
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, 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 |
Recommend
About Joyk
Aggregate valuable and interesting links.
Joyk means Joy of geeK