How do I tell if a point is in or on a boundary set by equations

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Andrew Padilla 2018-11-1

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评论： Star Strider 2018-11-1

I have a power curve, horizontal line, vertical line, and a linear line. The four of these enclose a region on a plot. I am looking to see if a user-inputted point is within or on the boundary. If anyone could guide me into the right direction, I would appreciate it.

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Star Strider 2018-11-1

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The inpolygon (link) function could be helpful.

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Andrew Padilla 2018-11-1

Strider,

I figured out a solution. It turns out, inpolygon() can be used to help out. Because the other equations are linear, in_polygon() will work for those boundaries. It fails where the shape is bounded by the power curve. Because of this, I have to check that the y value is greater than the x of the y value plugged in to the power curve equation. With that said, I created a conditional statement that checked if the y value was greater AND in or on is equal to one. If both of these are true, the point is in the shape. I will accept this as an answer because it did guide me to getting the answer.