#I'm kinda bored so can anyone give me some pointers for multivariable calculus?

18 messages · Page 1 of 1 (latest)

rocky copper
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I need some pointers because I'm learning the basics but I haven't necessarily learned things like reverse chain rule that would REALLY help with first and second order differential equations.

deft lavaBOT
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regal kettle
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the..reverse chain rule?

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ohh you mean for integrating

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learn the go to method for solving linear ODEs of the form

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$$ y' + P(x)y = Q(x) $$

tepid fossilBOT
regal kettle
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and things like

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$$ a_0y^{(n)} + a_1y^{(n-1)} + \ldots + a_ny = 0 $$

tepid fossilBOT
regal kettle
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can be solved with the characteristic equation

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tbf for 2nd order you only need

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$$ y'' + Ay' +By = 0 $$

tepid fossilBOT
regal kettle
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if it's not homogeneous, then solve first for homogeneous case, then generate all solutions using a particular solution

regal kettle
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@rocky copper

rocky copper