Invalid variable definition？

 Hi,

Please upload your Mathcad Prime worksheet.

You have to assign the result of the "find" command to a variable, like solution:=find(c,x1).
Now solution is a 2x1-vector.

Its more convenient to replace "solution" by a 2x1 vector consisting of the variables c and x1.

Note that Prime won't change the values of the variables c and x1 (guess values) unless you assign them new values as suggested above.

For future questions: Please always attach your worksheet!

Actually there are three possible solutions to this problem:

The one you've found with the given guess values is the middle set.

Success!
Luc