Floating Point or Float
Description
Number with a decimal point
Used for precision
Used for percentages, but between 0 and 1 (0 and 100%)
Used for time
Examples:
Processing:
float speed = 2.5;
JavaScript:
var percentage = 0.25;
Python:
percentage = 0.25
float speed = 2.5F;
^ This is one of the more common errors - forgetting that F.
Do not use commas in your numbers!
Shortcuts (Assignment Operators)
Quick Math
+= means “add this”
-= means “subtract this”
*= means “multiply it by this”
/= means “divide it by this”
This updates the variable when used
Example:
Processing, Java-based, and C-based:
float opacity = 0.5;
println(opacity); // Prints "0.5"
opacity += 0.15;
println(opacity); // Prints "0.65"
Python:
opacity = 0.5
print(opacity) # Prints "0.5"
opacity += 0.15
print(opacity) # Prints "0.65"
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