dot

Dot product of two vectors

Unqual!(CommonType!(T1, T2)) dot(V1 x, V2 y)
Unqual!(CommonType!(T1, T2))
dot
(
V1 : Series!(I1*, T1*)
V2 : Series!(I2*, T2*)
T1
T2
I1
I2
)
(
V1 x
,
V2 y
)
D dot(V1 x, V2 y)
Unqual!(CommonType!(T1, ForeachType!V2)) dot(V1 x, V2 y)
D dot(V1 x, V2 y)

Parameters

x V1: sparse vector
y V2: sparse vector

Return Value

Type: Unqual!(CommonType!(T1, T2))

scalar xᵀ × y

Examples

import mir.series;

auto x = series([0u, 3, 5, 9, 100], [1, 3, 4, 9, 10]);
auto y = series([1u, 3, 4, 9], [1, 10, 100, 1000]);
// x = [1, 0, 0,  3, 0, 4, 0, 0, 0, 9, ... ,10]
// y = [0, 1, 0, 10, 0, 0, 0, 0, 0, 1000]
assert(dot(x, y) == 9030);
assert(dot!double(x, y) == 9030);

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Source

See Implementation

mir sparse blas dot functions

dot