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Rounding numbers in Objective-C
In Objective-c How to round off Float values?
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The round() function returns a floating point number that is a rounded version of the specified number, with the specified number of decimals. The default number of decimals is 0, meaning that the function will return the nearest integer.
Just use the formatting with %. 2f which gives you round down to 2 decimal points.
Float number always round up.
If the number you are rounding is followed by 5, 6, 7, 8, or 9, round the number up. For example: 38.16299 rounded to the nearest tenth is 38.2. If the number you are rounding is followed by 0, 1, 2, 3, or 4, round the number down. For example: 38.16299 rounded to the nearest hundredth is 38.16.
In addition to the other answers:
float theFloat = 1.23456; int rounded = roundf(theFloat); NSLog(@"%d",rounded); int roundedUp = ceil(theFloat); NSLog(@"%d",roundedUp); int roundedDown = floor(theFloat); NSLog(@"%d",roundedDown); // Note: int can be replaced by float For rounding to specific decimals, see the question mentioned by Alex Kazaev.
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