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math logarithm java. It always returns a value of type double. In addition to that the Math class also defines two fields E and PI.
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I am doing a unit in Data Mining - Decision Tree Induction Is there a way i can do a logarithm base 2 or base 10 calculation. Unfortunately the only methods in Java that compute the logarithm of a number are javalangMathlog and javalangMathlog10. JavalangMath public final class Math extends Object The class Math contains methods for performing basic numeric operations such as the elementary exponential logarithm square root and trigonometric functions.
It is called a common logarithm.
If the number argument is negative double value or not a number NaN the java Mathlog function will return NaN. This java tutorial shows how to use the log10 double a method of Math class under javalang package. Sometimes a logarithm is written without a base like this. This method returns the base 10 logarithm of a value specified as method argument.
