- Processing
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- Processing Foundation

This reference is for Processing 3.0+. If you have a previous version, use the reference included with your software in the Help menu. If you see any errors or have suggestions, please let us know. If you prefer a more technical reference, visit the Processing Core Javadoc and Libraries Javadoc.

Name | ### double
Examples |
    double a;             // Declare variable 'a' of type double
    a = 1.5387D;          // Assign 'a' the value 1.5387
    double b = -2.984D;   // Declare variable 'b' and assign it the value -2.984
    double c = a + b;     // Declare variable 'c' and assign it the sum of 'a' and 'b'
    float f = (float)c;   // Converts the value of 'c' from a double to a float
Description | Datatype for floating-point numbers larger than those that can be stored in a float. A float is a 32-bit values that can be as large as 3.40282347E+38 and as low as -3.40282347E+38. A double can be used similarly to a float, but can have a greater magnitude because it's a 64-bit number. Processing functions don't use this datatype, so while they work in the language, you'll usually have to convert to a float using the (float) syntax before passing into a function.
Syntax |
    double var
    double var = value
Parameters |
var | variable name referencing the float
value | any floating-point value
Related | float

Updated on January 9, 2020 00:33:17pm EST