.. _arduino-max: max(x, y) ========= Description ----------- Calculates the maximum of two numbers. Parameters ---------- x: the first number, any data type y: the second number, any data type Returns ------- The larger of the two parameter values. Example ------- :: sensVal = max(senVal, 20); // assigns sensVal to the larger of sensVal or 20 // (effectively ensuring that it is at least 20) Note ---- Perhaps counter-intuitively, max() is often used to constrain the lower end of a variable's range, while min() is used to constrain the upper end of the range. Warning ------- Because of the way the max() function is implemented, avoid using other functions inside the brackets, it may lead to incorrect results :: max(a--, 0); // avoid this - yields incorrect results a--; // use this instead - max(a, 0); // keep other math outside the function See also -------- - `min `_\ () - `constrain `_\ ()