Real constants and functions: Difference between revisions
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=={{header|C}}==
Most of the following functions take a double
<c>#include <math.h>
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ceil(x); /* ceiling */
pow(x,y); /* power */</c>
=={{header|Haskell}}==
<pre>
pi --pi
sqrt x --square root
log x --natural logarithm
exp x --exponential
abs x --absolute value
floor x --floor
ceiling x --ceiling
x ** y --power (floating-point exponentiation)
x ^ y --power (integer exponentiation)
</pre>
=={{header|Java}}==
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