Bugs in Solve command.

[Han]

(03-07-2017 05:45 AM)math7 Wrote:  Thanks Han, but it does not work yet. In the captures below it shows what comes out, I did as you said with the Delavars command (AVars) and then run the same command and now gives no response, it is very strange. I then enter the application function and exited it but when I run the same issue comes the same error message, I feel frustrated.

Have you used other programs that have modified your variables?

First, type x and a to see if there are numerical values stored in either one. If you see numerical values, then that means they have been created somewhere.

HVars; (this will list the current Home variables)
AVars; (this will list the variables in the current app)

restart; (this will clear out all existing CAS variables)
DelHVars(HVars); (this will delete all Home variables)
DelAVars(AVars); (this will delete all app variables within the current app)

The last thing to check is whether you have an programs that EXPORT the variables a and/or x. Again, you will know based on what typing a or typing x puts onto the screen.