Calculator gives the equation line passing through the points specified by the user in the Cartesian coordinate system.          

The calculator performs convolution of two vectors of the same length in the field of real numbers by zsuwową.

The calculator calculates the weighted average of the ratings of the following items.              

Checks the calculator is a large number of so-called gay (Happy Number). Number gay is a natural number is defined as follows: Calculate the sum of squares of digits of the number. Repeat this process for the next results as long as we get the number 1 or the results will be repeated. If you have received as a result of one, the original number is the number of gay. Otherwise, a number bleak.    

This calculator allows you to calculate the percentage of the given numerical values.

Calculator performs decomposition of the given number of factors that are prime numbers (factorization).