OK.

Made one or two very minor tweaks to what you posted up there, and got it working. 

withPlots is now correct, with(plots) is not. 

Unless those semicolons are 'carriage return/enter' indicators, they also need to be removed. 

Also, I do not get the blue test you indicated after each equation is assigned.

Thank you, though. This has been very frustrating because they made minor changes and most people aren't familiar with them, so all the examples are out of date. 

I appreciate you guys responses, but I have gone through the tutorials and samples I can find online are all from older editions, Maple13 through Maple17. When I follow those guidelines, nothing runs, the items I've entered are based on the in program help files and web help. 

@Carl Love 

with(plots) is a syntax error in Maple2015:

Error, invalid inpit: with expects its 1st argument, pname, to be of the type ('module', package) but received Plots.

withPlots 

returns 

withPlots

 also, := is now an automatic syntax error in 2015

G=plot3d([x,sin(x),2sin(x)+cos(X^2)], x=-2..2,color=black) 

returns the correct space curve. 

When I use the space curve command, none of the examples work. 

Since I installed this, I have gotten syntax errors every single time I use := 

 This is maple2015 and it appears that there is a change concerning the use of colon-equals

@Carl Love with(plots) is what I used, and I've uploaded the code from maple.