This calculator will calculate logarithms, trigonometric
functions, and the logarithms of trigonometric functions.
Enter the value you want to apply the function to in the field
on the right. To calculate the logarithm of the value, check the
logarithm box. To calculate the trigonometric function on the
value, select the desired function from the list. To calculate
the logarithm of a trigonometric function applied to the value,
check the logarithm box and choose a trigonometric function.