Wcalc - 2.3

Wcalc is a very capable calculator. It supports abitrary precision, has standard functions (sin, asin, and sinh for example, in either radians or degrees), many pre-defined constants (pi, e, c, etc.), support for using variables, "active" variables, a command history, hex/octal/binary input and output, unit conversions, embedded comments, and an expandable expression entry field. It evaluates expressions using the standard order of operations.

Wcalc also comes in a command-line version that can be compiled on most (if not all) forms of Unix.

Wcalc uses intuitive expressions. For example, Wcalc will evaluate: 5sin 4!-7*2(4%6)^2 to be -221.96631678. Wcalc will also understand basic UTF-8 entities, and so will evaluate √7×2÷π−ε0×σ+α+γ+R∞×Mτ-Φ0 to be 2.26885