Why it says undefined variable x2

2018 9 26
1 个回答
更新时间：2023 9 9
12 次查看（30 天）

0 个投票

function [x2] = secant(f, x0, x1)
while true
x2 =f(x1)*(x2-x0)/f(x0)+x1;
if x1 == x2
return;
end
x0 = x1;
x1 = x2;
end
end

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回答（1 个）

James Tursa
James Tursa 2018-9-26

0 个投票

You have x2 appearing on the right hand side of your first assignment, before it has been defined.

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Dandan Lv
Dandan Lv 2018-9-26
thank you so much
Hazel
Hazel 2023-9-9
编辑：Hazel 2023-9-9
Hello @Dandan Lv, have you figured out this x2 equation that does not contain x2 on the RHS?

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Dandan Lv
Dandan Lv
2018-9-26

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Torsten
Torsten
2023-9-9

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