(Macro) computes the absolute value of a number.
Parameters¶x: the number.
Returns¶x: if x is greater than or equal to 0.
-x: if x is less than 0.
Warning¶Because of the way abs() is implemented, avoid using other functions or causing side effects inside the parentheses, as it may lead to incorrect results:
abs(a++); // avoid this - yields incorrect results abs(a); // use this instead - a++; // keep other operations outside abs()Arduino Compatibility¶
Maple’s implementation of abs() is compatible with Arduino.
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