Computer Science Canada Rounding |
| Author: | ElimPi [ Mon Jun 19, 2006 4:02 pm ] |
| Post subject: | Rounding |
I have a problem with rounding real numbers. I need to be able to round them to two decimal places without using field width specifiers. The reason is that I'm making a shop, and after tax is calculated, I get a real number to an obscenely long number of decimal places. I need to output the number as a Font.Draw, I know how to use realstr, but it puts it to a varying number of decimal places depending on how many digits precede the decimal. Any ideas? |
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| Author: | [Gandalf] [ Mon Jun 19, 2006 5:00 pm ] | ||
| Post subject: | |||
Look up the frealstr function. It looks like this: frealstr ( r : real, width, fractionWidth : int ) : string
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| Author: | aldreneo [ Mon Jun 19, 2006 8:58 pm ] |
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Dude I was about to ask how to do rounding, thanks |
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| Author: | [Gandalf] [ Wed Jun 21, 2006 8:36 am ] |
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No problem. Maybe it's a sign of Delos' clairvoyance spreading. 
Note that this function is only needed when you need to round to a specific amount of decimal places. If you only need to round a real number to an integer then you can use round (myNum : real) : int. |
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| Author: | Delos [ Wed Jun 21, 2006 9:19 am ] |
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[Gandalf] wrote: No problem. Maybe it's a sign of Delos' clairvoyance spreading.
About time too! What's the point of answering questions if you can't pre-empt other question's answers in the process?  |
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