sqrt

Square root.

Syntax

Y = sqrt(X)

Description

Returns X^(1/2). For negative real inputs, returns a complex result.

Examples

sqrt(16)                   % 4
sqrt(-1)                   % 1i

See also

• sqr — Square (X^2).
• nthroot — Real n-th root of an array.
• sqrtm — Matrix square root.
• power — Element-wise exponentiation (function form of .^).