Question

_________ of the characteristic curves is used to find the type of PDE.

(a) Starting point

(b) Centre

(c) Length

(d) Slope

I got this question in unit test.

I'd like to ask this question from Classification of PDE in chapter Mathematical Behaviour of Partial Differential Equations of Computational Fluid Dynamics

Answer 1

The correct option is (d) Slope

To explain I would say: The nature of the slope of the characteristic curves gives the nature of the characteristic curves. This directly matches with the type of the PDE too.