NB: The exercises are quite short this week as there is an aassessed assignment on the ELE page.

Exercises: variables and expressions

Comments and questions to John Rowe.

The aim at the moment is for you to be able to use the % operator and simple arithmetic, including complex numbers.

Complex N^th-roots

Write a program that uses complex numbers to calculate the N^th root of an arbitrary real number (including the posibility of the number being negative), where N is an integer. Print out the number and the root. You may ignore the possibility that N is zero.

Now write a test that calculates the result to the N^th power and prints out the absolute value of the difference between this and the original value. Log in