implicit function ，differeation

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jin yong
jin yong 2023-2-4
回答： Torsten 2023-2-5
here we have implicit function , caculate
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Dyuman Joshi
Dyuman Joshi 2023-2-5
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回答（1 个）

Torsten
Torsten 2023-2-5
Ran in:
syms x y(x) D2y
eqn = x + sin(y)/2 - y == 0
eqn(x) = 
d2eqn = diff(eqn,x,2)
d2eqn(x) = 
d2eqn_subs = subs(d2eqn,diff(y,x,2),D2y)
d2eqn_subs(x) = 
D2y = solve(d2eqn_subs,D2y)
D2y = 

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