Solving an equation with two variables, why is one being set to zero?

1 次查看（过去 30 天）
Alex Gordon
Alex Gordon 2017-9-28
回答： John D'Errico 2017-9-28
My code is as follows:
syms x y
[xRoot, yRoot] = solve((y-1).^2 + (x-1).^2 == floor(sqrt(2)-1).^2,y,x)
The output of this should (hopefully) be xRoot = 1, yRoot = 1 however in the actual output yRoot is being set to zero and xRoot is 1+-i.
How can I stop yRoot being set to zero and therefore not get complex roots for x?
Thanks.

请先登录，再回答此问题。

采纳的回答

John D'Errico
John D'Errico 2017-9-28
There are multiple solutions here. This will help in your case though.
syms x y real

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Symbolic Math Toolbox 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by