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Anonymous
multivariate function composition 2016-01-11 23:51:18 Post No. 7776823
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multivariate function composition 2016-01-11 23:51:18 Post No. 7776823
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So I know how to do basic function composition from R → R ( essentially, f(g(x)) ), but how would you do it with more than one variable and output? Say f: R2 → R2, and g: R2 → R3, then how would you compute f ∘ g?
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>Say f: R2 → R2, and g: R2 → R3, then how would you compute f ∘ g?
You wouldn't, because the domains don't match.
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>>7776823
>CS major detected
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>>7776838
fair enough, then how would you do it if the domains did match?
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>>7776843
g: R-> P(R) | x-> {x}
f: P(R)->P(P(R)) | {x}->{{x}}
ex:
f(g(1))={{1}}
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