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

Curtis Curry
Curtis Curry
717 Points
Posted by Curtis Curry
Curtis Curry
717 Points

Stumped and stuck, help!

float math_constants[0] = 2.71828; ^

I keep receiving one error each time I try to check my work. What exactly am I missing?

Jason Anello
Jason Anello
Courses Plus Student 94,610 Points

Hi Curtis,

What's the full code that you're using?

8 Answers

Jason Anello
Jason Anello
Courses Plus Student 94,610 Points

You're showing the instructions for task 1 but the code you're trying would indicate you're on task 2.

You want to make sure that you're adding to the existing code for each task you complete.

You would declare an array of type float with room for 2 floats like this: float math_constants[2];

Then the code you've been showing is for task 2 except you don't want to declare the float again since you already declared it in task 1.

So you should have 2 lines of code when trying to pass task 2.

Caleb Kleveter
MOD
Caleb Kleveter
Treehouse Moderator 37,862 Points
Caleb Kleveter
Caleb Kleveter
Treehouse Moderator 37,862 Points

Get rid of the ^. Does this make sense?

Edit: Delete the float.

Curtis Curry
Curtis Curry
717 Points
Curtis Curry
Curtis Curry
717 Points

use of undeclared identifier 'math_constants' math_constants[0] = 2.71828; ^ 1 error generated.

That's what I am getting and can't seem to get around. Where am I going wrong?

Curtis Curry
Curtis Curry
717 Points
Curtis Curry
Curtis Curry
717 Points

I removed the float but still get an error.

Jason Anello
Jason Anello
Courses Plus Student 94,610 Points

If you want to post all the code that you're trying to pass with then I can take a look.

Curtis Curry
Curtis Curry
717 Points
Curtis Curry
Curtis Curry
717 Points

Declare an array of type float named math_constants. The array should be big enough to hold 2 numbers.

float math_constants[0] = 2.71828;

Curtis Curry
Curtis Curry
717 Points
Curtis Curry
Curtis Curry
717 Points

That's the only line of code I have in there to try and complete that particular challenge.

Jimesh Ullas
PLUS
Jimesh Ullas
Courses Plus Student 66 Points
Jimesh Ullas
Jimesh Ullas
Courses Plus Student 66 Points

Declare an array of type float named math_constants. The array should be big enough to hold 2 numbers.

Answer: float math_constants[2] = {2.3983, 1.022};

Jimesh Ullas
PLUS
Jimesh Ullas
Courses Plus Student 66 Points
Jimesh Ullas
Jimesh Ullas
Courses Plus Student 66 Points

Assign the number 2.71828 to index 0 of math_constants.

Answer: math_constants[0] = 2.71828;