Unable to solve symbolically.

2018 10 29
2 个回答
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更新时间：2018 10 29
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I want to solve x, and it shows the warning messege "Unable to solve symbolically". It tells me to use vpasolve, but I don't want the "0" answer. Below is my code.
>syms x real;
>sol = solve(sin(x)==0.703*x,x);
What should I do to solve x?
Thanks

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 采纳的回答

Torsten
Torsten 2018-10-29

1 个投票

x0 = [1 2];
fun = @(x)sin(x)-0.703*x;
sol = fzero(fun,x0)

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Roger Jiang
Roger Jiang 2018-10-29
Thanks for your answer. However, I don't know what are the meaning of "@(x)" and "fzero". Would you like to explain? Thanks alot
Torsten
Torsten 2018-10-29
help functionhandle
help fzero

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更多回答（1 个）

Walter Roberson
Walter Roberson 2018-10-29

1 个投票

Use vpasolve with a third parameter that gives a starting point or search range.

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