aboutsummaryrefslogtreecommitdiffstats
path: root/source/lang/double.rst
diff options
context:
space:
mode:
Diffstat (limited to 'source/lang/double.rst')
-rw-r--r--source/lang/double.rst48
1 files changed, 0 insertions, 48 deletions
diff --git a/source/lang/double.rst b/source/lang/double.rst
deleted file mode 100644
index 1527778..0000000
--- a/source/lang/double.rst
+++ /dev/null
@@ -1,48 +0,0 @@
-.. _lang-double:
-
-``double``
-==========
-
-Double precision floating point type. Occupies 8 bytes. On Maple, the
-``double`` type has a range of approximately -1.79769×10^308 to
-1.79769×10^308; the ``double`` type subject to the same :ref:`overflow
-issues <lang-variables-rollover>` as any numeric data type.
-
-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, see the `Wikipedia article on floating point
-math <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 <lang-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 range and
-precision are different from that actually achieved on the Maple.
-
-See Also
---------
-
-- :ref:`float <lang-float>`
-
-
-
-.. include:: cc-attribution.txt