29 Numerics library [numerics]

29.9 Basic linear algebra algorithms [linalg]

29.9.13 BLAS 1 algorithms [linalg.algs.blas1]

29.9.13.4 Multiply the elements of an object in place by a scalar [linalg.algs.blas1.scal]

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template<class Scalar, inout-object InOutObj> void scale(Scalar alpha, InOutObj x); template<class ExecutionPolicy, class Scalar, inout-object InOutObj> void scale(ExecutionPolicy&& exec, Scalar alpha, InOutObj x);
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[Note 1: 
These functions correspond to the BLAS function xSCAL[bib].
— end note]
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Effects: Overwrites x with the result of computing the elementwise multiplication αx, where the scalar α is alpha.