** Unwrap phase angle in radians. **

** UNWRAP(P) unwraps radian phases P by changing absolute **

** jumps greater than pi to their 2*pi complement. It **

** unwraps columnwise with matrices. **

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** **

** UNWRAP(P,TOL) uses a jump tolerance of TOL rather **

** than the default TOL = pi. **

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** See also ANGLE , ABS . **

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