Return 2-based logarithm.
Source position: math.pp line 590
function Log2( |
x: Float |
):Float; |
Log2 returns the 2-base logarithm of X.
If x is less than or equal to 0 an 'invalid fpu operation' error will occur.
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Return (2 to the power p) times x. |
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Return natural logarithm of 1+X. |
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Return 10-Based logarithm. |
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Return N-based logarithm. |
Program Example22; { Program to demonstrate the log2 function. } Uses math; begin Writeln(Log2(2):8:4); Writeln(Log2(4):8:4); Writeln(Log2(8):8:4); Writeln(Log2(1):8:4); Writeln(Log2(0.5):8:4); Writeln(Log2(0.25):8:4); Writeln(Log2(0.125):8:4); end.