21. I know that it is possible to perform inverse trigonometric functions with a calculator. 22. "' pst-math "'provides trigonometric degrees ) and hyperbolic trigonometric functions . 23. Briggs and Vlacq also published original tables of the logarithms of the trigonometric functions . 24. Trigonometric functions also prove to be useful in the study of general periodic functions.25. The trigonometric functions are summarized in the following table and described in more detail below. 26. The six commonly used trigonometric functions are . .. 27. Trigonometric functions of inverse trigonometric functions are tabulated below.28. It avoids the use of trigonometric functions , which are comparatively expensive in many computing environments. 29. The effect is to replace one multiplication and one trigonometric function with a single division. 30. Would " flash " have an effect on the illustrations in Wikipedia's trigonometric functions article?
