Chrystal's equation
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In mathematics, Chrystal's equation is a first order nonlinear ordinary differential equation, named after the mathematician George Chrystal, who discussed the singular solution of this equation in 1896.[1] The equation reads as[2][3]
where are constants, which upon solving for , gives
This equation is a generalization of Clairaut's equation since it reduces to Clairaut's equation under certain condition as given below.