Matthew Hoggan
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 Dec15 awarded Caucus Jul31 awarded Notable Question Jul2 awarded Curious May16 accepted How is $\arctan(\sinh(x * \pi))$ the inverse of $\log(\tan(x)) / \pi$ May16 comment How is $\arctan(\sinh(x * \pi))$ the inverse of $\log(\tan(x)) / \pi$ en.wikipedia.org/wiki/…;. I have been looking at this and scratching my head. May16 awarded Custodian May16 revised How is $\arctan(\sinh(x * \pi))$ the inverse of $\log(\tan(x)) / \pi$ added 6 characters in body; edited title May16 reviewed Approve How is $\arctan(\sinh(x * \pi))$ the inverse of $\log(\tan(x)) / \pi$ May16 asked How is $\arctan(\sinh(x * \pi))$ the inverse of $\log(\tan(x)) / \pi$ May16 awarded Yearling May16 comment Reducing Function to be Expressed in Terms of 1 Trigonometric Function @MichaelHardy Your mathematical knowledge on this subject is impressive. I am interested in learning more. The problem I am solving is directly related to the Mercator projection. Do you have any recomended readings? I have Map Projections Used by the U.S. Geological Survey by John Snyder, as well as a few others. May16 accepted Reducing Function to be Expressed in Terms of 1 Trigonometric Function May16 awarded Commentator May16 comment Reducing Function to be Expressed in Terms of 1 Trigonometric Function How does $\frac{\sin x + 1}{\cos x} = \frac{\cos y + 1}{\sin y}$? May16 asked Reducing Function to be Expressed in Terms of 1 Trigonometric Function May16 accepted Does $\operatorname{arcsec}(x) = 1 /\arccos(x)$? May15 comment Does $\operatorname{arcsec}(x) = 1 /\arccos(x)$? Go to wolframalpha.com/widgets/… and input log10(tan(x) + sec(x)) as your fuction. May15 asked Does $\operatorname{arcsec}(x) = 1 /\arccos(x)$? Apr15 awarded Nice Question May10 awarded Popular Question