z.js
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I would like to learn this. Can someone teach me? The things like δy2/δ2x and solving for x and y. 

z.js said:I would like to learn this. Can someone teach me? The things like δy2/δ2x and solving for x and y.![]()
Borek said:There are thick books on the subject.
And they cover only introductory material...
HallsofIvy said:"Introductory Differential Equations" would be at least a semester course. "Differential equations" in general should require several courses. I don't know what you mean by " The things like δy2/δ2x and solving for x and y." Did you mean d^2y/dx^2 or \partial^2y/\partial x^2? Those are from Calculus and you should have completed Calculus before you attempt Differential Equations. Have you taken Calculus?
z.js said:aaaaaaaaaaaaaaaaaaaaaaaaah! Did you learn it?
Borek said:But asking people to TEACH you something like that is a horribly wrong approach.
oh dear...:zzz: I might just see how it works or maybe study it for several weeks.HomogenousCow said:Differential equations is probably the most studied area of applied mathematics (and maybe pure mathematics), one can spend an entire life time studying differential equations.