sqrt (MATLAB Function Reference)

sqrt	Examples See Also

Square root

Syntax

B = sqrt(A)

Description

B = sqrt(A)

returns the square root of each element of the array X. For the elements of X that are negative or complex, sqrt(X) produces complex results.

Remarks

See sqrtm for the matrix square root.

Examples

sqrt((-2:2)')
ans =
      0 + 1.4142i
      0 + 1.0000i
      0
 1.0000
 1.4142