原创 abs()--Matlab Function Reference

2010-5-4 13:20 2249 12 12 分类: 处理器与DSP
abs

Absolute value and complex magnitude
Syntax

abs(X)
Description

abs(X) returns an array Y such that each element of Y is the absolute value of the corresponding element of X.

If X is complex, abs(X) returns the complex modulus (magnitude), which is the same as

sqrt(real(X).^2 + imag(X).^2)

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