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floating point constants

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:

   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.