Mastery26
here is my video
http://youtu.be/jxwiXn2ADRQ
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Mastery26
here is my video
http://youtu.be/jxwiXn2ADRQ
Mastery26
here is my video
http://youtu.be/jxwiXn2ADRQ
Mastery26
here is my video
http://youtu.be/jxwiXn2ADRQ
#Mastery26
#TC1017
here a useful video for crating matrixes, there are more functionalities but this is just the basic for creating and understand them
https:/
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#Mastery26 was also shown over at the Sudoku video, #TC1017! Matrixes: Vectors of vectors!
https:/
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Tagged #Mastery26, #TC, #TC1017, Mastery
In this tutorial I talk about the creation and use of strings in python.
Youtube link:
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AQUI LES DEJO EL LINK DEL VIDEO DONDE EXPLICO
https:/
#Mastery26
#TC1014
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La sintaxis de una matriz es C++ es la siguiente:
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int matrix[rows][cols]; |
En este ejemplo int es el tipo de dato, matrix es el nombre del todo el conjunto de datos y debo de especificar el numero de filas (rows) y columnas (cols).
Las matrices también pueden ser de distintos tipos de datos como char, float, double, etc. Las matrices en C++ se almacenan al igual que los vectores en posiciones consecutivas de memoria.
Podriamos imaginarnos que una matriz es como un tablero, pero en realidad el manejo es como su definición lo indica, un vector de vectores, es decir, los vectores están uno detrás del otro juntos.
Para acceder a los elementos de la matriz es utilizando su nombre e indicando los 2 subíndices que van en los corchetes.
Si coloco int matriz[2][3] = 10; estoy asignando al cuarto elemento de la tercera fila el valor 10.
Es importante tener en cuenta que tanto filas como columnas se enumeran a partir de 0. Para recorrer una matriz es buena idea hacer uso de un bucle. En este caso usando 2 for:
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for ( int i = 0; i for ( int j = 0; j matrix[i][j] = i % j; } } |
Para mas información acerca de matrices dinamicas pueden consultar el siguiente enlace: https:/
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Creation and use of matrixes in C++ (multi – dimensional arrays)
The simplest form of the multidimensional array is the two-dimensional array. A two-dimensional array is, in essence, a list of one-dimensional arrays. To declare a two-dimensional integer array of size x,y, you would write something as follows:
#d6d6d6;">type arrayName [ x ][ y ];
Where type can be any valid C++ data type and arrayName will be a valid C++ identifier.
A two-dimensional array can be think as a table, which will have x number of rows and y number of columns. A 2-dimensional array a, which contains three rows and four columns can be shown as below:
Thus, every element in array a is identified by an element name of the form a[ i ][ j ], where a is the name of the array, and i and j are the subscripts that uniquely identify each element in a.
Multidimensioned arrays may be initialized by specifying bracketed values for each row. Following is an array with 3 rows and each row have 4 columns.
#d6d6d6;">int a[3][4] = { {0, 1, 2, 3} , /* initializers for row indexed by 0 */ {4, 5, 6, 7} , /* initializers for row indexed by 1 */ {8, 9, 10, 11} /* initializers for row indexed by 2 */ };
The nested braces, which indicate the intended row, are optional. The following initialization is equivalent to previous example:
#d6d6d6;">int a[3][4] = {0,1,2,3,4,5,6,7,8,9,10,11};
An element in 2-dimensional array is accessed by using the subscripts, i.e., row index and column index of the array. For example:
#d6d6d6;">int val = a[2][3];
The above statement will take 4th element from the 3rd row of the array. You can verify it in the above digram.
#d6d6d6;">#includeusing namespace std; int main () { // an array with 5 rows and 2 columns. int a[5][2] = { {0,0}, {1,2}, {2,4}, {3,6},{4,8}}; // output each array element's value for ( int i = 0; i 5; i++ ) for ( int j = 0; j 2; j++ ) { cout "a[" i "][" j "]: "; cout a[i][j] endl; } return 0; }
When the above code is compiled and executed, it produces the following result:
#d6d6d6;">a[0][0]: 0 a[0][1]: 0 a[1][0]: 1 a[1][1]: 2 a[2][0]: 2 a[2][1]: 4 a[3][0]: 3 a[3][1]: 6 a[4][0]: 4 a[4][1]: 8
As explained above, you can have arrays with any number of dimensions, although it is likely that most of the arrays you create will be of one or two dimensions.
Credits:
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Son las frases o palabras que tenemos en nuestro programa, podemos sumarlas, restarlas, etc.
Link: https:/
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