Another kind of 2D plot is a contour plot of a 3D graph. Red is high in elevation, blue is low. If you would only like a few vectors instead of a whole field of them, you can use the NEAR function to select a subset of the vectors. Kids don't have to know much math to love using DPGraph. My seven year old son pasted this 3D heart from DPGraph into Greetings Workshop to make his Valentine cards.
Kids love ice cream, too.
Copying DPGraph for unlicensed users is illegal. DPGraph is a trademark of David Parker. Other company and products names are trademarks or registered trademarks of their respective companies. All rights reserved. If you like, SAVE the modified file under a different name and it will be ready for future viewing and adjustments.