Cannot do the find command with undefined variable ?

[EVriderDK]

Cannot do the "find" command with "undefined variable" ?

http://peecee.dk/upload/view/363439

As you can see, i have to make I_1:=r.

I cannot directly write find(I_1,I_2,I_3)→
It will not do that. Why is that, and is it possible to force it? I cannot see the difference between using "I_1" and "r" but mathcad can :)

And better yet, get it to write separately: "I_1=1.132 A" <--- That would be awesome!
Because my math teacher will only accept "bold" or double underlined numbers as results.

Is it possible to get mathcad to state all the intermediate results between the equations and the final result?

 

[lippyka]

Unfortunately, it is not possible to do the "find" command with an undefined variable. The "find" command requires that all the variables used in the command are defined. You will need to define all the variables before you can use them in the "find" command. You can also try using the "solve" command instead of the "find" command, which may help you get the results you are looking for.