dot

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);