Talk:Equation of Catenary

This sentence:

The left hand side is worked by using Primitive of Reciprocal of Root of a x + b:

in order to integrate dp/[sqrt (1 + p squared)]

is incorrect.

The proposed method only works if the derivative of (1 + p squared) is in the expression in question. The derivative of p squared yields 2p dp thereby making the u substitution unworkable.

A trignometric substitution must be used in this particular case to solve the integral.


 * Good call. The link has been corrected. --prime mover (talk) 09:27, 24 May 2018 (EDT)