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Transform inverse trigonometric functions into logarithms : atrig2ln

atrig2ln takes as argument an expression containing inverse trigonometric functions.
atrig2ln rewrites these functions with complex logarithms.
Input :
atrig2ln(asin(x))
Output :
i*log(x+sqrt(x^2-1))+pi/2



giac documentation written by Renée De Graeve and Bernard Parisse