Result from solve() command shows c_0

[teerasak]

Sorry if I didn’t make the point clear.

I got the point about C_0 now which is another dummy variable to solve equation.

However, with this result, it doesn’t tell me the final answer. And to find out the answer, I need to figure out in other way e.g plotting the graph. I know we can use that way.

It will be good if we can improve this so that we can batter utilize our calculator.