Vector Times Matrix

Write a function $v\_times\_m(v, m)$ that receives a vector (in the form of a tuple) of floats and a matrix of floats $m$ , and returns the product of the vector by the matrix. The matrix is represented as a tuple of rows, each row being, in turn, a tuple of floats. We are guaranteed that the length of $v$ is not zero and that it equals the lengths of all the columns of $m$ . The returned vector is to be a tuple of the same length as the rows of $m$ , which is also guaranteed to be nonzero.

Observation

Solutions that return other iterable types instead of tuples are vey likely to be accepted as well.

Problem information

Author: José Luis Balcázar

Generation: 2026-01-25T16:20:53.536Z