Why can't I do the integral?

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Vania Ramirez
Vania Ramirez 2021 年 5 月 20 日
回答済み: Sulaymon Eshkabilov 2021 年 5 月 20 日
syms x
f=1/x
a=2
b=7
D1=diff(f,x);
D2=diff(D1,x);
D3=diff(D2,x);
D4=diff(D3,x);
E=(1/(b-a))*D4
F=int(E,a,b)
Error using sym/subsindex (line 857) Invalid indexing or function definition. Indexing must follow MATLAB indexing. Function arguments must be symbolic variables, and function body must be sym expression. Error in Untitled2 (line 12) F=int(E,a,b),

採用された回答

Sulaymon Eshkabilov
Sulaymon Eshkabilov 2021 年 5 月 20 日
Clear up all variables should help or worst case, restrat your MATLAB. You may also need to have the floating point numbers in your answer. If so, use:
F=double(int(E,a,b))

その他の回答 (1 件)

Girijashankar Sahoo
Girijashankar Sahoo 2021 年 5 月 20 日
%% run the program perhapes it work
F =
1431/19208

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