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I came upon an alogrithm years ago somewhere that showed how to programmatically round numbers. Here it is:
// num is the number we want to round. it may be int or fp. // what is what we want to round num to (ie nearest 10, 1/100, etc) // The rounding algorithm is: // 1) Divide num by what (the base we want to round to. ie .01 for hundredths, 10 for tens) // 2) Add .5 to num // 3) Truncate the result (keep the integer part) // 4) Multiply the result by num
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