cblas_srotg(_:_:_:_:)

Declaration

func cblas_srotg(_ A: UnsafeMutablePointer<Float>, _ B: UnsafeMutablePointer<Float>, _ C: UnsafeMutablePointer<Float>, _ S: UnsafeMutablePointer<Float>)

Parameters

• A:

  Single-precision value a. Overwritten on return with result r.

• B:

  Single-precision value b. Overwritten on return with result z (zero).

• C:

  Unused on entry. Overwritten on return with the value cos(θ).

• S:

  Unused on entry. Overwritten on return with the value sin(θ).

Discussion

Given a vertical matrix containing a and b, computes the values of cos θ and sin θ that zero the lower value (b). Returns the value of sin θ in s, the value of cos θ in c, and the upper value (r) in a.

See Also

Single-precision float matrix functions

• cblas_sasum(_:_:_:)
• cblas_saxpy(_:_:_:_:_:_:)
• cblas_scopy(_:_:_:_:_:)
• cblas_sgbmv(_:_:_:_:_:_:_:_:_:_:_:_:_:_:)
• cblas_sgemm(_:_:_:_:_:_:_:_:_:_:_:_:_:_:)
• cblas_sgemv(_:_:_:_:_:_:_:_:_:_:_:_:)
• cblas_sger(_:_:_:_:_:_:_:_:_:_:)
• cblas_snrm2(_:_:_:)
• cblas_srot(_:_:_:_:_:_:_:)
• cblas_srotm(_:_:_:_:_:_:)
• cblas_srotmg(_:_:_:_:_:)
• cblas_ssbmv(_:_:_:_:_:_:_:_:_:_:_:_:)
• cblas_sscal(_:_:_:_:)
• cblas_sspmv(_:_:_:_:_:_:_:_:_:_:)
• cblas_sspr(_:_:_:_:_:_:_:)