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Elementary functions

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sqrt

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Square root.

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Syntax

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R = sqrt(M)

Input argument

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M

a variable

Output argument

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R

result of sqrt: square root.

Description

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sqrt computes the square root.

If input argument is a complex number or negative, sqrt(z) computes: sqrt(r) * (cos(phi/2) + sin(phi/2) * i) with

r = sqrt((real(z) * real(z)) + (imag(z) * imag(z))) and phi = atan2(imag(z), real(z))

Example

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x = -3:3;
r = sqrt(x)

See also

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log, abs, angle.

History

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Version	Description
1.0.0	initial version

Author

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Allan CORNET