Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community!

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

iOS Objective-C Basics (Retired) Fundamentals of C Variables

How do i fix this float problem?

How do I fix this

more '%' conversions than data arguments printf("A ball with a radius of %f inches"); ~^

1 Answer

Hi Paul,

This could have been the title for a css problem :)

In your printf call you are only passing in that string as an argument. However, it contains a %f format specifier meaning that it's expecting you to pass in a second argument of type float to replace that %f

printf ("A ball with a radius of %f inches.", radius);

The radius variable is passed in as the second argument to printf and it will replace the %f with the value of that variable.