@Scot Gould 
Hi! How to find the attachment by OP?

@acer TQ for your further explanation!

@acer TQ for your explanation about 'view' and answer!

@acer TQ for your detailed answer! "textplot, arrow, plot, and pointplot" Help page I browsed these days and help a lot! 

@gkokovidis TQ for your answer!

@gkokovidis  TQ for your reply? BTW, how to display two lines: 'y=b' and 'x=a'? This is actually I want

@acer Good code

@acer Thanks for your clean code and interpretation for rational polynomial tripping.

@dharr Thanks!

@Carl Love Thanks for your idea and answer!

Hi, I think your comment doesn't match the actual code. What's B? is it Br in Maple code? Can you give some explanation?

 I have used @Mariusz Iwaniuk code provided. As an aside, is this overly long answer the form the poster intended?

@janhardo Yes, I agree with your statement about AI with Maple. AI cannot read human thoughts, and if the core logic is not clearly explained by AI, AI will always give wrong answers. Using AI to constantly debug and come up with new (or equivalent) code is a good way to master Maple. This website and the website for learning Maple given by others in my previous answer https://www.mapleprimes.com/questions/238982-Maple-Programming-Contest are good choices. 

@janhardo As an aside, can you tell me how you combine AI and MAPLE? My personal approach (with limited knowledge) is to constantly ask questions about Maple code in chatgpt and correct errors based on the results.

@acer Thanks for your answer! I initially just wanted to solve for h without considering t or g. However, the NLP generated two solutions, and I want to choose the one where t > 0. Eliminating g or t depends on whether the question asks for them, but it doesn't in this case. Your method offers a quick way to filter.