Usage: calc [=n] 'expression' Option: =n number of digits to compute Expression: Math operators: + - / * ^ % Bool operators: || && ! Functions: sqrt(x) square root of x s(x) sine of x, x is in radians c(x) cosine of x, x is in radians a(x) arctangent of x, returns radians l(x) natural logarithm of x e(x) exponential function of raising e to the value x p Pi