The Unofficial C For Dummies Website

This page supports the C programming books written by Dan Gookin and published by John Wiley, as well as the C language training courses offered online at LinkedIn Learning.

Recent Lessons

The switch Condition: August 8, 2020 The switch statement need not contain a single value or variable.
Digits of Significance: August 1, 2020 Seeing the necessity, I wrote a function to compare floating-point values for significant digits.
My Own Square Root Funtion: July 25, 2020 I swear I'm not a math nerd, yet I felt compelled to write my own square root function. Perhaps I'm just weird?
Getting to the Square Root of the Problem: July 18, 2020 What if the sqrt() function didn't exist! What would you do?
The gettimeofday() Function: July 11, 2020 And I thought I knew all the C language time functions.

Lessons are posted each Saturday; see the blog for all the Lessons

This Month's Exercise

Multiples of Four: August 1, 2020 No matter what the player guesses, the computer must round up the value to the next multiple of four.

Exercises are posted on the first of the month; see the blog for all the Exercises

Current Titles

For support on my older C titles, click: C All-In-One reference and C For Dummies.

Online Training

Online training is provided through Linkedin Learning, a subscription service. Click here to see my available courses; new online training is available frequently.

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"For Dummies" is a trademark or registered trademark of John Wiley.
This site is the online companion to the various
C language For Dummies titles written by Dan Gookin,
published by John Wiley.