Discover MakerZone

MATLAB and Simulink resources for Arduino, LEGO, and Raspberry Pi

Learn more

Discover what MATLAB® can do for your career.

Opportunities for recent engineering grads.

Apply Today

Problem 1827. Negation the hard way

Created by Andrew Newell

Write a function that has the following property: f(f(x)) = -x for any numeric array x.

Note that there is no restriction on the output for f(x). How bizarre can you make it?

Tags

Problem Group

Solution Statistics

44 correct solutions 32 incorrect solutions
Last solution submitted on Sep 29, 2014

Problem Comments

Solution Comments