Function evaluate #

Evaluate an expression.

The expression parser does not use JavaScript. Its syntax is close to JavaScript but more suited for mathematical expressions. See https://mathjs.org/docs/expressions/syntax.html to learn the syntax and get an overview of the exact differences from JavaScript.

Note the evaluating arbitrary expressions may involve security risks, see https://mathjs.org/docs/expressions/security.html for more information.

Syntax #

math.evaluate(expr)
math.evaluate(expr, scope)
math.evaluate([expr1, expr2, expr3, ...])
math.evaluate([expr1, expr2, expr3, ...], scope)

Parameters #

Returns #

Throws #

Examples #

math.evaluate('(2+3)/4')                // 1.25
math.evaluate('sqrt(3^2 + 4^2)')        // 5
math.evaluate('sqrt(-4)')               // 2i
math.evaluate(['a=3', 'b=4', 'a*b'])    // [3, 4, 12]

let scope = {a:3, b:4}
math.evaluate('a * b', scope)           // 12

See also #

parse, compile