How can I round a float value to 2 post decimal positions?

Question

I've got a float value from an accelerometer which looks like this:

-3.04299553323

I'd like to get -3.04 for example. Is there an easy way for rounding that float value?

Edit:

http://stackoverflow.com/questions/752817/rounding-numbers-in-objective-c

Answer 1

Multiply it by 100, (round up/down to nearest integer if necessary), take the integer portion, then divide by 100 again

Applies for any number decimals places, multiply/divide by 10^(no. of decimals).

Answer 2

float f = -3.04299553323
int i = f *100; //-304
float answer = i/100 ;//-3.04