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BLAS Level 1 Routines¶

This section describes BLAS Level 1 routines, which perform vector-vector operations. The following table lists the BLAS Level 1 routine groups and the data types associated with them.

Routine Group	Data Types	Description
asum	`float`, `double`, mixed `float` and `std::complex<float>`, mixed `double` and `std::complex<double>`	Sum of vector magnitudes
axpy	`float`, `double`, `std::complex<float>`, `std::complex<double>`	Scalar-vector product
copy	`float`, `double`, `std::complex<float>`, `std::complex<double>`	Copy vector
dot	`float`, `double`, mixed `float` and `double`	Dot product
sdsdot	mixed `float` and `double`	Dot product with double precision
dotc	`std::complex<float>`, `std::complex<double>`	Dot product conjugated
dotu	`std::complex<float>`, `std::complex<double>`	Dot product unconjugated
nrm2	`float`, `double`, mixed `float` and `std::complex<float>`, mixed `double` and `std::complex<double>`	Vector 2-norm (Euclidean norm)
rot	`float`, `double`, mixed `float` and `std::complex<float>`, mixed `double` and `std::complex<double>`	Plane rotation of points
rotg	`float`, `double`, `std::complex<float>`, `std::complex<double>`	Generate Givens rotation of points
rotm	`float`, `double`	Modified Givens plane rotation of points
rotmg	`float`, `double`	Generate modified Givens plane rotation of points
scal	`float`, `double`, `std::complex<float>`, `std::complex<double>`, mixed `float` and `std::complex<float>`, mixed `double` and `std::complex<double>`	Vector-scalar product
swap	`float`, `double`, `std::complex<float>`, `std::complex<double>`	Vector-vector swap
iamax	`float`, `double`, `std::complex<float>`, `std::complex<double>`	Index of the maximum absolute value element of a vector
iamin	`float`, `double`, `std::complex<float>`, `std::complex<double>`	Index of the minimum absolute value element of a vector

BLAS Routines asum