David Yevick's A Short Course in Computational Science and Engineering: PDF

By David Yevick

Construction on his hugely winning textbook on C++, David Yevick offers a concise but entire one-stop path in 3 key programming languages, C++, Java and Octave (a freeware substitute to MATLAB). applying merely public-domain software program, this publication offers a different evaluation of numerical and programming thoughts, together with object-oriented programming, straightforward and complex issues in numerical research, actual process modelling, clinical photos, software program engineering and function concerns. Compact, obvious code in all 3 programming languages is utilized to the elemental equations of quantum mechanics, electromagnetics, mechanics and statistical mechanics. Uncommented types of the code that may be instantly converted and tailored are supplied on-line for the extra concerned courses. This compact, sensible textual content is a useful creation for college kids in all undergraduate- and graduate-level classes within the actual sciences or engineering that require numerical modelling, and likewise a key reference for teachers and clinical programmers

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Extra resources for A Short Course in Computational Science and Engineering: C++, Java and Octave Numerical Programming with Free Software Tools

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Program maintenance. After a program has been completed, periodic updates and revisions are facilitated by employing high-level, properly commented modules that can be easily replaced, together with documents describing the program structure and operation. 2 The main( ) function The entry point into (the first code executed by) a C++ program is the body of the main( ) function. Accordingly, every C++ program must contain a single occurrence of int main( int argc, char *argv[ ] ) { ... statements ...

The statements enclosed within the block then should poll for a certain user or system response to exit the loop. 9 while and do . . 10 break, continue and exit( ) int loop = 0; while ( loop < 5 ) { cout << loop++ << '' ''; } or alternatively with a do . . while statement as int loop = 0; do { cout << loop++ << '' ''; } while ( loop < 5 ); Note that a terminating semicolon is required for a do . . while statement but not for the while statement. However, if int loop = 6; is substituted for int loop = 0; above, only the while statement reproduces the results of the for loop since the logical condition in the do .

Operators such as the assignment operator are right-associative since m = n = 5 is then correctly interpreted as placing the value 5 first in the memory space associated with n and subsequently placing the value of n into the memory space of m. Left associativity would instead assign the value of n to m but then overwrite this value with 5. Whenever knowledge of associativity or precedence is required in order to resolve an expression, unintentional errors frequently arise. Thus, in the above example, 5/(4*3) is very often intended but the parentheses are unintentionally omitted.

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