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README-en.md edited online with Bitbucket

Jose R Ortiz Ubarri 8 years ago
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-[Verano 2016- Tatiana - Ive]
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 Recursion is a technique that is commonly used in programming. With this technique, problems are done by solving similar problems but for smaller cases. We can construct sets of objects or tasks using *recursive rules* and *initial values*. *Recursive functions* are functions that are self-invoking, using smaller sets or elements each time, until reaching a point where an initial value is used instead of self-invoking. In this laboratory experience, you will implement some tools to draw and practice the use of recursive functions to fill with color some figures.
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-## `Qt` Coordinates:
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 * The coordinate system in `Qt` works a bit differently, as it is shown in Figure 1. The entries go from left to right, from 0 to the maximum width, and from top to bottom, from 0 to the maximum height.
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 ## Laboratory Session:
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-### Exercise  1: Implement the Functions that Operate the Buttons for Drawing Lines
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+### Exercise  1 - Implement the Functions that Operate the Buttons for Drawing Lines
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 ####Instructions
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 **Figure 5** - (a) A drawing with a white background and red dots. (b) When the user clicks on the right diagonal line button (`DiagonalRight`) and clicks the cell shown, (c) a right diagonal line that expands towards the top to the right and towards the bottom to the left of the cell clicked is drawn, until it finds a cell with a different color from the color of the background. 
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-### Exercise 2: Implement the Functions that Operate the Buttons for Drawing Squares, Triangles and Circles. 
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 Now, you will implement the functionality to draw squares, circles and triangles. The **size** of the figure drawn will depend on the size selected on sliding bar in the interface.
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-### Exercise 3: Implement the Function that Fills the Figures using Recursion. 
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 In this exercise you will implement the functionality to fill the color of the figures.One of the more convinient ways to express the algorithm to fill the figures is using recursion. A basic recursive algorithm (but it’s pretty weak) is found in Wikipedia:
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-##References
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 [1] Alyce Brady and Pamela Cutter, http://nifty.stanford.edu/2005/GridPlotter/
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