00001 #include "MusimatTutorial.h" 00002 MusimatTutorialSection(B0103) { 00003 Print("*** B.1.3 Data Types ***"); 00004 /***************************************************************************** 00005 00006 B.1.3 Data Types 00007 00008 To begin, we need only two types of numbers, Integer, which is a positive or negative whole 00009 number, and Real, which is an approximate real number. To keep things simple, let's assume for 00010 our purposes that we have virtually unlimited precision for computations. As we go along, I intro- 00011 duce additional data types as needed. 00012 00013 *****************************************************************************/ 00014 00015 Integer x; // This statement introduces a variable "x" which can store an integer. 00016 x = 3; // This statement assigns the value 3 to integer "x". 00017 Integer y = 7; // We can combine steps: we define y as an Integer and assign it the value 7. 00018 00019 Real pi = 3.14; // Real variables can store real numbers 00020 Real pi2 = 22.0/7.0; // We can initialize variables with expressions. 00021 00022 // Now let's print out the values we just created 00023 Print("x=", x); 00024 Print("y=", y); 00025 Print("pi=", pi); 00026 Print("pi2=", pi2); 00027 } 00028 00030 /* $Revision: 1.2 $ $Date: 2006/09/05 06:32:24 $ $Author: dgl $ $Name: $ $Id: B0103.cpp,v 1.2 2006/09/05 06:32:24 dgl Exp $ */ 00031 // The Musimat Tutorial © 2006 Gareth Loy 00032 // Derived from Chapter 9 and Appendix B of "Musimathics Vol. 1" © 2006 Gareth Loy 00033 // and published exclusively by The MIT Press. 00034 // This program is released WITHOUT ANY WARRANTY; without even the implied 00035 // warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 00036 // For information on usage and redistribution, and for a DISCLAIMER OF ALL 00037 // WARRANTIES, see the file, "LICENSE.txt," in this distribution. 00038 // "Musimathics" is available here: http://mitpress.mit.edu/catalog/item/default.asp?ttype=2&tid=10916 00039 // Gareth Loy's Musimathics website: http://www.musimathics.com/ 00040 // The Musimat website: http://www.musimat.com/ 00041 // This program is released under the terms of the GNU General Public License 00042 // available here: http://www.gnu.org/licenses/gpl.txt 00043
1.7.2