# Vector extrema calculation Calculate the minimum and maximum values in a vector. ## Topics ### Calculating the minimum value of a vector [`static func minimum(U) -> Float`](/documentation/Accelerate/vDSP/minimum(_:)-9b5zc) Returns the single-precision minimum value of a vector. [`static func minimum(U) -> Double`](/documentation/Accelerate/vDSP/minimum(_:)-4w8y3) Returns the double-precision minimum value of a vector. [`extern void vDSP_minv(const float *__A, vDSP_Stride __IA, float *__C, vDSP_Length __N);`](/documentation/Accelerate/vDSP_minv) Calculates the single-precision minimum value of a vector. [`extern void vDSP_minvD(const double *__A, vDSP_Stride __IA, double *__C, vDSP_Length __N);`](/documentation/Accelerate/vDSP_minvD) Calculates the double-precision minimum value of a vector. [`extern void vDSP_minmgv(const float *__A, vDSP_Stride __IA, float *__C, vDSP_Length __N);`](/documentation/Accelerate/vDSP_minmgv) Calculates the single-precision minimum magnitude of a vector. [`extern void vDSP_minmgvD(const double *__A, vDSP_Stride __IA, double *__C, vDSP_Length __N);`](/documentation/Accelerate/vDSP_minmgvD) Calculates the double-precision minimum magnitude of a vector. ### Calculating the index of the minimum value of a vector [`static func indexOfMinimum(U) -> (UInt, Float)`](/documentation/Accelerate/vDSP/indexOfMinimum(_:)-989q3) Returns the maximum value and corresponding index in a single-precision vector. [`static func indexOfMinimum(U) -> (UInt, Double)`](/documentation/Accelerate/vDSP/indexOfMinimum(_:)-56tf7) Returns the maximum value and corresponding index in a double-precision vector. [`extern void vDSP_minvi(const float *__A, vDSP_Stride __IA, float *__C, vDSP_Length *__I, vDSP_Length __N);`](/documentation/Accelerate/vDSP_minvi) Calculates the minimum value and corresponding index in a single-precision vector. [`extern void vDSP_minviD(const double *__A, vDSP_Stride __IA, double *__C, vDSP_Length *__I, vDSP_Length __N);`](/documentation/Accelerate/vDSP_minviD) Calculates the minimum value and corresponding index in a double-precision vector. [`extern void vDSP_minmgvi(const float *__A, vDSP_Stride __IA, float *__C, vDSP_Length *__I, vDSP_Length __N);`](/documentation/Accelerate/vDSP_minmgvi) Calculates the minimum magnitude and corresponding index in a single-precision vector. [`extern void vDSP_minmgviD(const double *__A, vDSP_Stride __IA, double *__C, vDSP_Length *__I, vDSP_Length __N);`](/documentation/Accelerate/vDSP_minmgviD) Calculates the minimum magnitude and corresponding index in a double-precision vector. ### Calculating the maximum value of a vector [`static func maximum(U) -> Float`](/documentation/Accelerate/vDSP/maximum(_:)-220y6) Returns the single-precision maximum value of a vector. [`static func maximum(U) -> Double`](/documentation/Accelerate/vDSP/maximum(_:)-6lwgw) Returns the double-precision maximum value of a vector. [`extern void vDSP_maxv(const float *__A, vDSP_Stride __IA, float *__C, vDSP_Length __N);`](/documentation/Accelerate/vDSP_maxv) Calculates the single-precision maximum value of a vector. [`extern void vDSP_maxvD(const double *__A, vDSP_Stride __I, double *__C, vDSP_Length __N);`](/documentation/Accelerate/vDSP_maxvD) Calculates the double-precision maximum value of a vector. [`static func maximumMagnitude(U) -> Float`](/documentation/Accelerate/vDSP/maximumMagnitude(_:)-19jre) Returns the single-precision maximum magnitude of a vector. [`static func maximumMagnitude(U) -> Double`](/documentation/Accelerate/vDSP/maximumMagnitude(_:)-557r4) Returns the double-precision maximum magnitude of a vector. [`extern void vDSP_maxmgv(const float *__A, vDSP_Stride __IA, float *__C, vDSP_Length __N);`](/documentation/Accelerate/vDSP_maxmgv) Calculates the single-precision maximum magnitude of a vector. [`extern void vDSP_maxmgvD(const double *__A, vDSP_Stride __IA, double *__C, vDSP_Length __N);`](/documentation/Accelerate/vDSP_maxmgvD) Calculates the double-precision maximum magnitude of a vector. ### Calculating the index of the maximum value of a vector [`static func indexOfMaximum(U) -> (UInt, Float)`](/documentation/Accelerate/vDSP/indexOfMaximum(_:)-5qdtm) Returns the maximum value and corresponding index in a single-precision vector. [`static func indexOfMaximum(U) -> (UInt, Double)`](/documentation/Accelerate/vDSP/indexOfMaximum(_:)-8h0hm) Returns the maximum value and corresponding index in a double-precision vector. [`extern void vDSP_maxvi(const float *__A, vDSP_Stride __IA, float *__C, vDSP_Length *__I, vDSP_Length __N);`](/documentation/Accelerate/vDSP_maxvi) Calculates the maximum value and corresponding index in a single-precision vector. [`extern void vDSP_maxviD(const double *__A, vDSP_Stride __IA, double *__C, vDSP_Length *__I, vDSP_Length __N);`](/documentation/Accelerate/vDSP_maxviD) Calculates the maximum value and corresponding index in a double-precision vector. [`static func indexOfMaximumMagnitude(U) -> (UInt, Float)`](/documentation/Accelerate/vDSP/indexOfMaximumMagnitude(_:)-f14b) Returns the maximum magnitude and corresponding index in a single-precision vector. [`static func indexOfMaximumMagnitude(U) -> (UInt, Double)`](/documentation/Accelerate/vDSP/indexOfMaximumMagnitude(_:)-6847f) Returns the maximum magnitude and corresponding index in a double-precision vector. [`extern void vDSP_maxmgvi(const float *__A, vDSP_Stride __IA, float *__C, vDSP_Length *__I, vDSP_Length __N);`](/documentation/Accelerate/vDSP_maxmgvi) Calculates the maximum magnitude and corresponding index in a single-precision vector. [`extern void vDSP_maxmgviD(const double *__A, vDSP_Stride __IA, double *__C, vDSP_Length *__I, vDSP_Length __N);`](/documentation/Accelerate/vDSP_maxmgviD) Calculates the maximum magnitude and corresponding index in a double-precision vector. --- 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)