# RemovePointPoly: Removes a point from a previously defined polygon In LearnGeom: Learning Plane Geometry

## Description

`RemovePointPoly` creates a matrix to represent the polygon that connects several points

## Usage

 `1` ```RemovePointPoly(Poly, position) ```

## Arguments

 `Poly` Polygon object, previously created with function `CreatePolygon` or `CreateRegularPolygon` `position` Integer indicating the position of the point in the original polygon that is being removed. It is convenient to visualize the polygon with `label = T` in order to avoid mistakes

## Value

Returns a matrix which contains the points of the polygon. Each row represents one of the points

## Examples

 ``` 1 2 3 4 5 6 7 8 9 10 11``` ```x_min <- -5 x_max <- 5 y_min <- -5 y_max <- 5 CoordinatePlane(x_min, x_max, y_min, y_max) n <- 5 C <- c(0,0) l <- 2 Penta <- CreateRegularPolygon(n, C, l) Penta <- RemovePointPoly(Penta, 4) Draw(Penta, "blue", label = TRUE) ```

LearnGeom documentation built on July 14, 2020, 5:06 p.m.