Abacus is a simple interactive calculator CLI with support for variables, lambdas, comparison checks, and math functions.
This is free and open source software.
Key Features
- History of expressions and Tab completion of all math functions and defined variables.
- Importing from file lets you keep variable and lambda definitions in a file and import it on load.
- Custom prompt symbol lets you use a custom string as a prompt prefix.
- Evaluate and exit lets you evaluate an expression and exit without entering REPL mode.
- All common operations (+ – * / ^ % etc).
- Last answers are saved in the variables ans and answer by default.
- Comparisons <, ==, >, <=, >=.
- E, Pi, Phi.
- Single arity functions: sqrt, cbrt, ln, log, log2, log10, floor, ceil, exp, sin, cos, tan, abs, round.
- Two arity functions (accept 2-tuples): round (number, digits of precision), log (number, base),
- N-arity functions (accept n-tuples): min, max, avg, from, until, reverse, nth
- Reserved names.
- Lambda expression support.
Website: github.com/viktordanov/abacus
Support:
Developer: Viktor Danov
License: MIT License
abacus is written in Go. Learn Go with our recommended free books and free tutorials.
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