String formatting: less decimals in %f float? [duplicate]

This question already has answers here: Make a float only show two decimal places 开发者_开发问答 (13 answers) Closed 8 years ago.

Well, I am using %f for displaying float values in my string. However, the values are too accurate (around 6 decimal digits after the point). I'd like to only display 1 decimal. But how?

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%0.2f or some other number after the decimal point.

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NSLog(@"%0.1f", floatThing);

I think that should work. For more decimals change 0.1 to 0.2, 0.3, 0.4 ... etc.

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[NSString stringWithFormat:@"%.DECIMAL_PRECISION_NUMBER_HEREf", someFloat]

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http://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/Strings/Articles/formatSpecifiers.html#//apple_ref/doc/uid/TP40004265

and

http://pubs.opengroup.org/onlinepubs/009695399/functions/printf.html