Real constants and functions: Difference between revisions
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<tt>Exp</tt>, <tt>sqrt</tt>, <tt>ln</tt>, and <tt>exp</tt> return <tt>real</tt> values, but a <tt>complex</tt> value if supplied with a <tt>complex</tt> value. |
<tt>Exp</tt>, <tt>sqrt</tt>, <tt>ln</tt>, and <tt>exp</tt> return <tt>real</tt> values, but a <tt>complex</tt> value if supplied with a <tt>complex</tt> value. |
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<tt>Abs</tt> returns an <tt>integer</tt> value if supplied with an <tt>integer</tt>, otherwise a <tt>real</tt> value. |
<tt>Abs</tt> returns an <tt>integer</tt> value if supplied with an <tt>integer</tt>, otherwise a <tt>real</tt> value. |
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=={{header|PascalABC.NET}}== |
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<syntaxhighlight lang="delphi"> |
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## |
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Println(E); |
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Println(Pi); |
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var x := 2.5; |
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Println(Sqrt(x)); |
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Println(Ln(x)); // natural logarithm |
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Println(LogN(10,x)); // logarithm with base |
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Println(Exp(x)); |
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Println(Abs(-x)); |
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Println(Floor(x)); |
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Println(Ceil(x)); |
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var y := 4.1; |
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Println(x ** y); |
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</syntaxhighlight> |
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{{out}} |
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<pre>2.71828182845905 |
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3.14159265358979 |
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1.58113883008419 |
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0.916290731874155 |
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0.397940008672038 |
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12.1824939607035 |
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2.5 |
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2 |
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3 |
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42.8108682181725 |
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</pre> |
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=={{header|Perl}}== |
=={{header|Perl}}== |
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