Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

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


float math_constants [2] = 2.71828; Im confused about adding 2.71828 to index 0 of math_constants.

1 Answer

Hi Shaun,

I'm assuming you're on task 2.

After task 1 you should have had float math_constants[2];

This gives us an array of type float with room for 2 floats. Since array indices are zero based this means we can assign a float value to math_constants[0] and to math_constants[1]. No other indices would be valid.

Task 2 states "Assign the number 2.71828 to index 0 of math_constants"

Since the index is 0 we make sure that is what we put between the brackets.

math_constants[0] = 2.71828;