A full scientific calculator: trig, logarithms, powers, roots, factorials, parentheses, and the constants π and e. Switch between degrees and radians, tap the buttons, or just type on your keyboard.
Safe expression engine (no eval). Handles decimals, nested parentheses, and unary minus.
It evaluates full expressions with addition, subtraction, multiplication, division, powers, and parentheses, plus functions such as sin, cos, tan, asin, acos, atan, log, ln, sqrt, and abs. It also supports factorials, percentages, and the constants π and e.
DEG and RAD set how trigonometric functions read angles. In DEG mode, sin(90) equals 1 because 90 is treated as degrees. In RAD mode, angles are read as radians, so sin(π/2) equals 1.
Use the caret symbol for powers, so 2^10 equals 1024. For a square root, use sqrt followed by a value in parentheses, so sqrt(144) equals 12.