28 Numerics library [numerics]

28.9 Basic linear algebra algorithms [linalg]

28.9.13 BLAS 1 algorithms [linalg.algs.blas1]

28.9.13.6 Add vectors or matrices elementwise [linalg.algs.blas1.add]

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template<in-object InObj1, in-object InObj2, out-object OutObj> void add(InObj1 x, InObj2 y, OutObj z); template<class ExecutionPolicy, in-object InObj1, in-object InObj2, out-object OutObj> void add(ExecutionPolicy&& exec, InObj1 x, InObj2 y, OutObj z);
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[Note 1: 
These functions correspond to the BLAS function xAXPY[bib].
— end note]
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Constraints: x.rank(), y.rank(), and z.rank() are all equal.
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Mandates: possibly-addable<InObj1, InObj2, OutObj>() is true.
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Preconditions: addable(x,y,z) is true.
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Effects: Computes .
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Remarks: z may alias x or y.