Similar to integer constants, floating point constants are used to make code more readable. Floating point constants are swapped at compile time for the value to which the expression evaluates.
n = .005;
Floating point constants can also be expressed in a variety of scientific notation. 'E' and 'e' are both accepted as valid exponent indicators.
floating-point evaluates to: also evaluates to: constant 10.0 10 2.34E5 2.34 * 10^5 234000 67e-12 67.0 * 10^-12 .000000000067
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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.