opinsky

Thanks - any tips on how to find the inverse. Mathematica doesn´t seem to help (i used Solve[L==function(theta),theta) ). I´ve also tried to taylor expand to no avail. Regards...

Hello, if the arc-length of an archimdes spiral (polar formula is r = a * theta) is s(theta) = 1/2 a (theta * sqrt (1 + thetaˆ2) + asinh theta) what is the formula calculate theta as a function of S? Best regards, Oren