A west arabic numeral, ultimately from indic numerals (compare devanagari ४ (4)), a cursive form of four lines (to represent the number four) arranged in the shape of a cross (resembling.. The calculator includes functions for square root, percentage, pi, exponents, powers.
The equation calculator allows you to take a simple or complex equation and solve by best method possible.. Four is the smallest even number appearing in a pythagorean triple: