Description
Calculates the minimum of two numbers.
Syntax
min(x, y)
Parameters
x: the first number, any data type
y: the second number, any data type
Returns
The smaller of the two numbers.
The Arduino Reference text is licensed under a Creative Commons Attribution-Share Alike 3.0 License.
Find anything that can be improved? Suggest corrections and new documentation via GitHub.
Doubts on how to use Github? Learn everything you need to know in this tutorial.
min()
[Math]Example Code
The code ensures that it never gets above 100.
sensVal = min(sensVal, 100); // assigns sensVal to the smaller of sensVal or 100
// ensuring that it never gets above 100.Notes and Warnings
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.
Because of the way the min() function is implemented, avoid using other functions inside the brackets, it may lead to incorrect results
min(a++, 100); // avoid this - yields incorrect results
min(a, 100);
a++; // use this instead - keep other math outside the function
