# Phase computation functions Calculate the element-wise phase values, in radians, of a complex vector. ## Topics ### Single-Vector Phase Computation The functions in this group compute the phase values of each element in a complex vector. [`static func phase(DSPSplitComplex, result: inout V)`](/documentation/Accelerate/vDSP/phase(_:result:)-1ve4y) Calculates the single-precision element-wise phase values, in radians, of the supplied complex vector. [`static func phase(DSPDoubleSplitComplex, result: inout V)`](/documentation/Accelerate/vDSP/phase(_:result:)-56qb1) Calculates the double-precision element-wise phase values, in radians, of the supplied complex vector. [`extern void vDSP_zvphas(const DSPSplitComplex *__A, vDSP_Stride __IA, float *__C, vDSP_Stride __IC, vDSP_Length __N);`](/documentation/Accelerate/vDSP_zvphas) Calculates the single-precision element-wise phase values, in radians, of the supplied complex vector using the specified stride. [`extern void vDSP_zvphasD(const DSPDoubleSplitComplex *__A, vDSP_Stride __IA, double *__C, vDSP_Stride __IC, vDSP_Length __N);`](/documentation/Accelerate/vDSP_zvphasD) Calculates the double-precision element-wise phase values, in radians, of the supplied complex vector using the specified stride. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)