tcalc
A featureful calculator for when you want to do math in a terminal.
Usage
tcalc supports two modes of usage: terminal and REPL.
# Terminal
$ tcalc '2**8 - 1' 'ans >> 1' 'abs(-13.7)'
255
127
13.7
# REPL
$ tcalc
> 2**8 - 1
255
> ans >> 1
127
> abs(-13.7)
13.7
> exit
Installation
- Install Rust
- Run
cargo install tcalc from your terminal
Syntax
| Operator |
Description |
| ( ) |
parens |
| - ! |
negate, bitwise NOT |
| ** |
exponentiation |
| * / % |
multiplication, division, modulo |
| + - |
addition, subtraction |
| ++ -- |
increment, decrement (suffix) |
| << >> |
left shift, right shift |
| & |
bitwise AND |
| ^ |
bitwise XOR |
| | |
bitwise OR |
| = |
variable assignment |
| += -= *= /= %= **= &= |= ^= <<= >>= |
compound assignment |
| func_name([arg, ...]) |
function call |
| Numeric Format |
Description |
| [0-9] |
decimal literal |
| [0-9].[0-9] |
fractional decimal literal |
| 0b[0-1] |
binary literal |
| 0o[0-7] |
octal literal |
| 0d[0-9] |
decimal literal |
| 0d[0-9].[0-9] |
fractional decimal literal |
| 0x[0-9a-f] |
hexadecimal literal |
| Variable |
Description |
| e |
Euler's number (e) |
| phi |
Golden ratio (φ) |
| pi |
Archimedes' constant (π) |
| ans |
Result of previous expression |
| Function |
Description |
| abs(n) |
Returns the absolute value of n |
| ceil(n) |
Returns the smallest integer greater than or equal to n |
| floor(n) |
Returns the largest integer less than or equal to n |
| round(n) |
Returns the nearest integer to n; Round half-way cases away from 0.0 |
REPL
| Command |
Description |
| exit |
exit the REPL |
| quit |
alias for exit |
Dustin Brown (dubrowgn)