dotprod

NAME

dotprod() - the dot product of two vectors

SYNOPSIS

float dotprod(int * | float * vector_a, int * | float * vector_b)

DESCRIPTION

Returns the dot product of 'vector_a' and 'vector_b': the sum of the
products of their corresponding elements. The result is always a float.

Both vectors must have the same size; otherwise a runtime error is raised
("dotprod: cannot take the dotprod of vectors of different sizes."). Each
element of either vector may independently be an int or a float; an element
of any other type raises a runtime error.

EXAMPLE

dotprod(({ 1, 2, 3 }), ({ 4, 5, 6 })); // 32.0  (1*4 + 2*5 + 3*6)

SEE ALSO

norm(3), distance(3), angle(3)