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Real constants and functions: Difference between revisions
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CEILING(x) ! ceiling - Fortran 90 or later only
x**y ! x raised to the y power
=={{header|Groovy}}==
Math constants and functions are as outlined in the [[#Java Java]] example, except as follows:
'''Absolute Value'''
In addition to the java.lang.Math.abs() method, each numeric type has an abs() method, which can be invoked directly on the number:
<lang groovy>println ((-22).abs())</lang>
Output:
<pre>22</pre>
'''Power'''
In addition to the java.lang.Math.pow() method, each numeric type works with the power operator (**), which can be invoked as an in-fix operator between two numbers:
<lang groovy>println 22**3.5</lang>
Output:
<pre>49943.547010599876</pre>
Power results are not defined for all possible pairs of operands. Any power operation that does not have a result returns a 64-bit IEEE NaN (Not a Number) value.
<lang groovy>println ((-22)**3.5)</lang>
Output:
<pre>NaN</pre>
Also note that at the moment (2009-05-24) Groovy (1.6.2) gives a mathematically incorrect result for "0**0". The correct result should be "NaN", but the Groovy operation result is "1".
=={{header|Haskell}}==
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