vSgesub(_:_:_:_:_:_:_:)

Declaration

func vSgesub(_ height: Int32, _ width: Int32, _ a: UnsafePointer<vFloat>, _ forma: CChar, _ b: UnsafePointer<vFloat>, _ formb: CChar, _ c: UnsafeMutablePointer<vFloat>)

Parameters

• height:

  Number of rows in the matrices to be subtracted; must be a multiple of 4.

• width:

  Number of columns in the matrices to be subtracted; must be a multiple of 4.

• a:

  A matrix with elements of type float. If forma = ‘N’, the matrix itself is used in the calculation and it has height rows and width columns. If forma = ‘T’, the transpose is used and a has width rows and height columns.

• forma:

  Selector with a value of ‘N’ or ‘T’.

• b:

  A matrix with elements of type float. If formb = ‘N’, the matrix itself is used in the calculation and it has height rows and width columns. If formb = ‘T’, the transpose is used and b has width rows and height columns.

• formb:

  Selector with a value of ‘N’ or ‘T’.

• c:

  Destination matrix with height rows and width columns.

Discussion

Matrix b (or its transpose) is subtracted from matrix a (or its transpose); the result is stored in mactrix c.

See Also

Matrix Operations (from vectorOps.h)

• vSgeadd(_:_:_:_:_:_:_:)
• vSgemul(_:_:_:_:_:_:_:_:)
• vSgemm(_:_:_:_:_:_:_:_:_:_:_:)
• vSgetmi(_:_:)
• vSgetmo(_:_:_:_:)
• vSgevv(_:_:_:_:_:)