These operators return the sum, difference, product, or quotient (respectively) of the two operands. The operation is conducted using the data type of the operands, so, for example,
9 / 4 gives
2 since 9 and 4 are ints. This also means that the operation can overflow if the result is larger than that which can be stored in the data type (e.g. adding 1 to an int with the value 32,767 gives -32,768). If the operands are of different types, the "larger" type is used for the calculation.
If one of the numbers (operands) are of the type float or of type double, floating point math will be used for the calculation.
y = y + 3; x = x - 7; i = j * 6; r = r / 5;
result = value1 + value2; result = value1 - value2; result = value1 * value2; result = value1 / value2;
value1: any variable or constant
value2: any variable or constant
Corrections, suggestions, and new documentation should be posted to the Forum.
This reference is licensed under a Creative Commons Attribution-ShareAlike 3.0 License and is based on the Arduino reference. Code samples in the reference are released into the public domain.