Community Tip - You can change your system assigned username to something more personal in your community settings. X
Hi everyone!
I have square equation, and I have to find x, so I use solve function and find 2 values of x, for example, positive x and negative x. Then I have to use that x in further equations, but only positive value of x.
Maybe someone could tell me how can I make that mathcad will use only positive x value in further equations and ignore negative?
Please look a file in attachment!
Thank you!
Solved! Go to Solution.
Hello!
Use the symbolic operator "assume" (in our case: "assume, x> 0"):
The operator "assume" can be found on a toolbar "Symbolic":
Hello!
Use the symbolic operator "assume" (in our case: "assume, x> 0"):
The operator "assume" can be found on a toolbar "Symbolic":
Thank you very much, you helped me a lot
You're welcome. I also have attached to the message file Mathcad 15.
Another way but not as elegant as Valdimir's solution.
Mike
Thank you, i appreciate your help
No problem at all.
Mike
Another slightly different way, see x2.
Mike
Message was edited by: Mike Armstrong - Correct worksheet included