Arduino

Buy | Download | Getting Started | Learning | Reference | Hardware | FAQ

Blog » | Forum » | Playground »

Reference Language | Libraries | Comparison | Changes

## 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.

Examples:

`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

Reference Home

Corrections, suggestions, and new documentation should be posted to the Forum.

The text of the Arduino reference is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.

Share|
Edit Page | Page History | Printable View | All Recent Site Changes