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Possible Duplicate:
Trouble with floats in Objective-C
I have broken this problem down to about as simple as i can get it. Feel free to try the same thing and tell me if you get the same error and what solution you might have. I have already tried it on several computers.
float total = 200000.0f + 154196.8f;
NSLog(@"total: %f", total);
The output is:
total: 354196.812500
If anyone has any sort of logical explanation, feel free to share it.
I’d suggest you brush up on your floats
http://www.altdevblogaday.com/2012/05/20/thats-not-normalthe-performance-of-odd-floats/
If you need higher precision use a double.
Additionally http://randomascii.wordpress.com/2012/03/08/float-precisionfrom-zero-to-100-digits-2/