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jstavitsky1-Visitor
1-Visitor
Feb 9, 2015 4:43 AM UTC
Solved

input x+3y^2=6

I want to input that and solve for Y. None of the equal signs seems to work. Any help?

Thanks

Joe

Werner_E
Werner_EAnswer
25-Diamond I
Feb 9, 2015 5:17 PM UTC

Joseph Stavitsky wrote:

OK, and how do I type that equal sign please?

Also, is there some way to force real solution?

You have to use the boolean equal sign. Either from the Boolean Toolbar or via Keyboard shortcut (language dependent).

For x<=6 you get real solutions.

You can simplify each solution separate to get what you probably meant with "real solution" (it depends on x!) but it didn't work for the whole vector - we can't have it all and Mathcad's symbolics is quite limited. The result given below of course is valid for x>=6, too.

1.png

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9 replies

Werner_E
Werner_E25-Diamond I
25-Diamond I
Feb 9, 2015 5:48 AM UTC

If x is unknown you have to use the symbolic "solve" command.

1.png

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jstavitsky1-VisitorAuthor
1-Visitor
Feb 9, 2015 4:07 PM UTC

OK, and how do I type that equal sign please?

Also, is there some way to force real solution?

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Werner_E
Werner_E25-Diamond IAnswer
25-Diamond I
Feb 9, 2015 5:17 PM UTC

Joseph Stavitsky wrote:

OK, and how do I type that equal sign please?

Also, is there some way to force real solution?

You have to use the boolean equal sign. Either from the Boolean Toolbar or via Keyboard shortcut (language dependent).

For x<=6 you get real solutions.

You can simplify each solution separate to get what you probably meant with "real solution" (it depends on x!) but it didn't work for the whole vector - we can't have it all and Mathcad's symbolics is quite limited. The result given below of course is valid for x>=6, too.

1.png

Translate
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