清空筛选条件
清空筛选条件

Empty sym: 0-by-1

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Max Insect
Max Insect 2020-5-20
评论： Max Insect 2020-5-21
Im very new to Matlab, than please, can anybody help/
This is the part of the code
syms x1;
solve(x.^2+4*sin(x)==0,x1)
and this is ans
ans =
Empty sym: 0-by-1
What can i fo to fix it?
(The solutions of this equation are:0 and smthng abot -1.93)
  1 个评论
Max Insect
Max Insect 2020-5-20
LOL. ama n idiot. the problem was in x and x1. now the qstn is how to display the second solution? (i have zero, need th -1.93)

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回答（1 个）

DEEPAK SHARMA
DEEPAK SHARMA 2020-5-20
vpasolve(x^2+4*sin(x)==0,x, [-2 -1])
ans =
-1.9337537628270212533084756690907

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