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README.md

@@ -106,30 +106,30 @@ En este ejercicio graficarás algunas ecuaciones paramétricas que generan curva
 
 3. El archivo `main.cpp` (en Sources) contiene la función `main()` donde estarás añadiendo código. Abre ese archivo y estudia el código.
 
-        ```
-    QApplication a(argc, argv);
-    XYPlotWindow wLine;
-    XYPlotWindow wCircle;
-    XYPlotWindow wHeart;
-    XYPlotWindow wButterfly;
-
-    double y = 0.00;
-    double x = 0.00;
-    double increment = 0.01;
-
-    for (double t = 0; t < 2*M_PI; t = t + increment) {
-        // parametric equations
-        x = t;
-        y = t;
-
-        // add x and y as a point in the graph
-        wLine.AddPointToGraph(x,y);
-    }
-
-    // After all the points have been added, plot and show the graph
-    wLine.Plot();
-    wLine.show();
-        ```
+
+        QApplication a(argc, argv);
+        XYPlotWindow wLine;
+        XYPlotWindow wCircle;
+        XYPlotWindow wHeart;
+        XYPlotWindow wButterfly;
+
+        double y = 0.00;
+        double x = 0.00;
+        double increment = 0.01;
+
+        for (double t = 0; t < 2*M_PI; t = t + increment) {
+            // parametric equations
+            x = t;
+            y = t;
+         
+            // add x and y as a point in the graph
+            wLine.AddPointToGraph(x,y);
+        }
+
+        // After all the points have been added, plot and show the graph
+        wLine.Plot();
+        wLine.show();
+
 
     La línea `XYPlotWindow wLine;` crea el objeto `wLine` que será la ventana en donde se dibujará una gráfica, en este caso la gráfica de un segmento. Observa el ciclo `for`. En este ciclo se genera una serie de valores para $t$ y se computa un valor de $x$ y $y$ para cada valor de $t$. Cada par ordenado $(x,y)$  es añadido a la gráfica del segmento por el método `AddPointToGraph(x,y)`. Luego del ciclo se invoca el método `Plot()`, que "dibuja" los puntos, y el método `show()`, que muestra la gráfica. Los *métodos* son funciones que nos permiten trabajar con los datos de los objetos. Nota que cada uno de los métodos se escribe luego de `wLine`, seguido de un punto. En una experiencia de laboratorio posterior aprenderás más sobre objetos y practicarás cómo crearlos e invocar sus métodos.
 
@@ -309,30 +309,30 @@ You can also download the folder `Expressions-PrettyPlots` from  `http://bitbuck
 
 3. The file `main.cpp` (in Sources) contains the function `main()` where you will be adding code. Open this file and study the code.
 
-    ```cpp
-    QApplication a(argc, argv);
-    XYPlotWindow wLine;
-    XYPlotWindow wCircle;
-    XYPlotWindow wHeart;
-    XYPlotWindow wButterfly;
-
-    double y = 0.00;
-    double x = 0.00;
-    double increment = 0.01;
-
-    for (double t = 0; t < 2*M_PI; t = t + increment) {
-        // parametric equations
-        x = t;
-        y = t;
-
-        // add x and y as a point in the graph
-        wLine.AddPointToGraph(x,y);
-    }
-
-    // After all the points have been added, plot and show the graph
-    wLine.Plot();
-    wLine.show();
-    ```
+
+        QApplication a(argc, argv);
+        XYPlotWindow wLine;
+        XYPlotWindow wCircle;
+        XYPlotWindow wHeart;
+        XYPlotWindow wButterfly;
+
+        double y = 0.00;
+        double x = 0.00;
+        double increment = 0.01;
+    
+        for (double t = 0; t < 2*M_PI; t = t + increment) {
+            // parametric equations
+            x = t;
+            y = t;
+
+            // add x and y as a point in the graph
+            wLine.AddPointToGraph(x,y);
+        }
+
+        // After all the points have been added, plot and show the graph
+        wLine.Plot();
+        wLine.show();
+
 
     The line  `XYPlotWindow wLine;` creates the object `wLine`, that is the window that will show the plot of a graph, in this case the graph of a segment. Look at the `for` cycle. In this cycle several values for $t$ are generated and a value for $x$ and $y$ is computed for each $t$. Each ordered pair $(x,y)$ is added to the graph of the segment by the method `AddPointToGraph(x,y)`.  After the cycle, there is a call to the  method  `Plot()`, to "draw" the points in the graph, and to the method `show()`, to show the plot. The *methods* are functions that allow us to work with the data of an object. Note that each of the methods is written after `wLine`, and followed by a period. In a future laboratory experience you will learn more about objects and practice how to create them and invoke their methods.