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--- arduino:math:abs [2013/02/15 20:45]
+++ arduino:math:abs [2024/02/16 01:04] (current)
@@ Line 1: / Line 1: @@
+======abs(x)   ======
+====Description   ====
+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 the abs() function is implemented, avoid using other functions inside the brackets, it may lead to incorrect results.
+<code arduino>
+abs(a++);   // avoid this - yields incorrect results
+a++;          // use this instead -
+abs(a);       // keep other math outside the function
+</code>
+Source: arduino.cc

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