eva
calculator REPL with arbitrary precision
TLDR
SYNOPSIS
eva [options] [expression]
DESCRIPTION
eva is a calculator REPL and CLI written in Rust for evaluating mathematical expressions. It supports standard arithmetic, trigonometric functions, logarithms, and constants like pi and e.In interactive REPL mode, previous results are available as _ and history can be recalled. Pass an expression directly on the command line for one-off evaluation.eva provides a quick command-line calculator with more intuitive syntax than bc.
PARAMETERS
INPUT
Mathematical expression string to evaluate (non-interactive).-f, --fix N
Number of decimal places in output (1-64, default 10).-b, --base N
Radix of calculation output (1-36, default 10).-r, --radian
Use radians for trigonometric functions.-h, --help
Display help information.-V, --version
Show version information.
INSTALL
CAVEATS
Complex expressions may need quoting to avoid shell interpretation. Variables do not persist in one-shot command mode; use the interactive REPL for multi-step calculations.
HISTORY
eva was created as a modern command-line calculator, providing an alternative to bc and similar tools with a more intuitive syntax and additional features.
