dot

Dot product.

float dot ( floatn p0,
  floatn p1)

double dot (gentype p0, gentype p1) // if double extension enabled
half dot (gentype p0, gentype p1) // if half extension enabled

Description

Computes the dot product.

Notes

Built-in geometric functions operate component-wise and the description is per-component. The type name floatn indicates that the function can take float, float2, float3, or float4 as the type for the arguments.

The built-in geometric functions are implemented using the round to nearest even rounding mode.

The geometric functions can be implemented using contractions such as mad or fma.

If extended with cl_khr_fp64, generic type name gentype may indicate double and double{2|3|4} as arguments. If extended with cl_khr_fp16, generic type name gentype may indicate half and half{2|3|4} as arguments.

Specification

OpenCL Specification

Also see

Geometric Functions

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