Scalar product P71310


Statement
 

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The scalar product of two vectors u=(u0,…,un−1) and v=(v0,…,vn−1) is ∑i=0n−1 ui vi.

Write a function that returns the scalar product of u and v.

Interface

C++
double scalar_product(const vector<double>& u, const vector<double>& v);
C
double scalar_product(int n, double u[n], double v[n]);
Java
public static double scalarProduct(double[] u, double[] v);
Python
scalar_product(u, v) # returns float
 
scalar_product(u: list, v: list) -> float

Precondition

The vectors u and v have the same size.

Observation You only need to submit the required procedure; your main program will be ignored.

Information
Author
Jordi Petit
Language
English
Translator
Carlos Molina
Original language
Catalan
Other languages
Catalan
Official solutions
C C++ Java Python
User solutions
C C++ Java Python