Program help needed

[DrD]

Well, that's part of the problem ... There is a space where a comma would (more clearly) separate the TWO parts of the vector. However, 'Textbook Display' checked, resulted in the gradient function producing a vector with a space. Not only can I not clearly see the components in this example, mat2list() may not be able to discern it either.

Is this a bug, perhaps? I've been working with planes and lines tangent to level surfaces, lately. Hence the example. It is important to my old eyes to be able see the vector components clearly. All I needed was to find a simple, dependable way to make that happen. Joe's suggestion, (as always), solved my dilemma.

For expressions with positive terms, it's somewhat less of a visual problem, but with a negative term in subsequent positions it looks like it all rolled into just ONE expression.

You've helped me quite a bit, and I am most thankful. The double quote trick moves me past an impasse that stalled my ppl program progress. I was avoiding a cas program because of conn kit editor limitations, and my lack of handy documentation for cas programming.