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rounding [2019/04/20 03:11] – korshun | rounding [2019/08/26 21:01] – [Rounding] korshun | ||
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ACSUtils provides a full set of functions to round fixed-point numbers to integers. | ACSUtils provides a full set of functions to round fixed-point numbers to integers. | ||
- | < | + | < |
Before using ACSUtils, rename either the built-in functions (by editing '' | Before using ACSUtils, rename either the built-in functions (by editing '' | ||
</ | </ | ||
+ | |||
+ | ==== Rounding modes ==== | ||
There are four rounding modes: | There are four rounding modes: | ||
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* '' | * '' | ||
- | Example rounding | + | A table that demonstrates the differences between rounding modes: |
^ x ^ round(x) ^ floor(x) ^ ceil(x) ^ trunc(x) ^ | ^ x ^ round(x) ^ floor(x) ^ ceil(x) ^ trunc(x) ^ | ||
^ | ^ | ||
- | ^ | + | ^ |
^ | ^ | ||
^ -1.3| -1| -2| | ^ -1.3| -1| -2| | ||
- | ^ -1.5| -1| -2| | + | ^ -1.5| -2 or -1| -2| |
^ -1.8| -2| -2| | ^ -1.8| -2| -2| | ||
+ | |||
+ | ==== Rounding functions in ACSUtils ==== | ||
Every rounding mode is available as two functions: | Every rounding mode is available as two functions: | ||
* Functions without the '' | * Functions without the '' | ||
- | * Functions with the '' | + | * Functions with the '' |
^ Mode ^ fixed result ^ int result ^ | ^ Mode ^ fixed result ^ int result ^ |