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math log negative number. -10 -20 and -1 are all examples of negative numbers. While the value of a logarithm can be a negative number the argument x-value of any logarithm cannot be negative.
The mathlog number Base method is used to compute the logarithm of any Base. Since the base b is positive b0 the base b raised to the power of y must be positive b y 0 for any real y. Lnx is undefined for x 0.
The following example uses Log to evaluate certain logarithmic identities for selected values.
What is the logarithm of a negative number. If the value is not a number it returns a TypeError. Negative integers have values less than zero. Logz lnr - ip r 0.