The Pythagorean theorem states that for a right triangle, the relationship between the length of the hypotenuse c and the lengths of the other sides a and b is given by:

The Pythagorean theorem states that for a right triangle, the relationship between the length of the hypotenuse c and the lengths of the other sides a and b is given by:

 c 2 = a2 + b2

Write a script that will prompt the user for the lengths a and c, call a function findb to calculate and return the length of b, and print the result. Note that any values of a or c that are less than or equal to zero would not make sense, so the script should print an error message if the user enters any invalid value. Here is the function findb:

findb.m

function b = findb(a,c)

% Calculates b from a and c

b = sqrt(c^2 - a^2);

end