Casonctin/tinymath

A tiny math expression evaluation engine and an interactive calculator.

C++MIT

A tiny math expression evaluation engine and an interactive calculator.

Operator

operator	description
`( )`	expression group
`x ** y`	exponent $x^y$
`+x`	unary plus
`-x`	unary plus
`!x`	logical NOT
`~x`	bitwise NOT
`x * y`	multiplication
`x / y`	division
`x // y`	floor division
`x % y`	remainder
`x + y`	addition
`x - y`	subtraction
`x << y`	bitwise left shift
`x >> y`	bitwise right shift
`x < y`	less than
`x <= y`	less than or equal
`x > y`	greater than
`x >= y`	greater than or equal
`x == y`	equal
`x != y`	not equal
`x & y`	bitwise AND
`x ^ y`	bitwise XOR
`x \| y`	bitwise OR
`x && y`	logical AND
`x \|\| y`	logical OR
`x ?: y`	coalescing, `x ? x : z`
`x ?? y`	coalescing, `x ? x : z`
`x ? y : z`	ternary

See https://en.cppreference.com/w/cpp/language/operator_precedence, https://docs.python.org/3/reference/expressions.html#operator-precedence, https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Operator_precedence and https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/Number/isSafeInteger for more document.

Constant

name	value
`e`	2.71828182845904523536
`pi`	3.14159265358979323846

Function

name
`double abs(double x)`
`double ceil(double x)`
`double floor(double x)`
`double round(double x)`
`double trunc(double x)`
`double min(double x, double y)`
`double max(double x, double y)`
`double cbrt(double x)`
`double exp(double x)`
`double exp2(double x)`
`double hypot(double x, double y)`
`double log(double x)`
`double log10(double x)`
`double log2(double x)`
`double pow(double base, double exp)`
`double sqrt(double x)`
`double acos(double x)`
`double asin(double x)`
`double atan(double x)`
`double atan2(double y, double x)`
`double cos(double x)`
`double sin(double x)`
`double tan(double x)`

See https://en.cppreference.com/w/cpp/numeric/math and https://docs.python.org/3/library/math.html for function description.