Arduino Floor Command

I ve seen some convoluted ways to make numbers round up or down but find the generic c c round function round works just fine.

Arduino floor command. That means the total number of digits not the number to the right of the decimal point. Unlike other platforms where you can get more precision by using a double e g. If you don t like the behavior of this arduino language and want to use actual c create a new tab in your project and name it main cpp or if you prefer c. Round down value rounds x downward returning the largest integral value that is not greater than x.

The thing is arduino is not standard c but some sort of language of its own that is based on c but introduces some simplifications. I often use round in my spreadsheet work and copied a formula using that to arduino not realizing that round does not exist in the arduino reference. Among other things it creates its own functions well macros for round min max abs etc. The float data type has only 6 7 decimal digits of precision.

Double floor double x. Doubts on how to use github. Arduino math library. The arduino reference text is licensed under a creative commons attribution share alike 3 0 license.

Long double floor long double x. Up to 15 digits on the arduino double is the same size as float. Following are the macros defined in the header math h. Also floor ceil and trunc work just fine.

Float floor float x.