Mathematical expression evaluation library with big integers, floats, common fractions, and complex numbers support. The library is used by the project RionaCalc
sqrt(-4) converts float number -4 into complex one -4+0i and then calculates the result 0+2i. The same is true for calculating logarithm for negative float numbers, and acos and asin for argument greater than 1.0(1+2)(2+9) is calculated as (1+2)*(2+9)sin cos 2 is calculated as sin(cos(2))(1+2)*(2+9 is the same as (1+2)*(2+9)20d30m50s or 20°30'50". Minutes and seconds can be omitted, in this case degrees can be float number like 30.25d. So, sin(pi/2) == sin(90°)_ for readability - it is very useful when using big integers. 3_000.90_23 == 3000.9023. and , are treated as decimal separators;. If a function receives more arguments than it requires, the trailing arguments are dropped: e.g, sqrt(11;12;13) is the same as sqrt(11)\ to separate its parts. They can be written with integer part or only with numerator and denominator, e.g 1\1\10 == 11\101+2i == 1+i2. In addition, j can be used instead of i - but the calculator outputs always with i0x), octal(starts with 0o), and binary(starts with 0b) numbers% can be either a modulo or a percentage operator. It depends on the character position: if % is right before the expression end or before closing bracket or before another operator and previous operator is one of +, -, *, or /, the character is considered a percentage operator