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diff --git a/source/arduino/double.rst b/source/arduino/double.rst deleted file mode 100644 index d1c1076..0000000 --- a/source/arduino/double.rst +++ /dev/null @@ -1,49 +0,0 @@ -.. _arduino-double: - -double -====== - -Description ------------ - -Double precision floating point number. Occupies 8 bytes. - -Floating point numbers are not exact, and may yield strange results -when compared. For example ``6.0 / 3.0`` may not equal ``2.0``. You -should instead check that the absolute value of the difference between -the numbers is less than some small number. - -Floating point math is also much slower than integer math in -performing calculations, so should be avoided if, for example, a loop -has to run at top speed for a critical timing function. Programmers -often go to some lengths to convert floating point calculations to -integer math to increase speed. - -For more information about floating point math, see the `Wikipedia -article <http://en.wikipedia.org/wiki/Floating_point>`_\ . - -Floating-point numbers represent numbers with "decimal point", unlike -integral types, which always represent whole numbers. Floating-point -numbers are often used to approximate analog and continuous values -because they have greater resolution than integers. - -The double implementation on the Maple uses twice the number of bytes -as a :ref:`float <arduino-float>`, with the corresponding gains in -precision. - -Tip ---- - -Users who borrow code from other sources that includes double -variables may wish to examine the code to see if the implied -precision is different from that actually achieved on the Maple. - - -See Also --------- - -- :ref:`float <arduino-float>` - - - -.. include:: cc-attribution.txt
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