Guide to Scientific Computing in C++ (Undergraduate Topics by Joe Pitt-Francis, Jonathan Whiteley

By Joe Pitt-Francis, Jonathan Whiteley

This easy-to-read textbook/reference offers an important consultant to object-oriented C++ programming for medical computing. With a pragmatic specialize in studying by means of instance, the speculation is supported by means of quite a few exercises. 

Features: offers a particular concentrate on the appliance of C++ to clinical computing, together with parallel computing utilizing MPI; stresses the significance of a transparent programming type to lessen the creation of error into code; provides a realistic creation to procedural programming in C++, protecting variables, circulate of keep an eye on, enter and output, guidelines, features, and reference variables; indicates the efficacy of periods, highlighting the most beneficial properties of object-orientation; examines extra complex C++ good points, akin to templates and exceptions; provides priceless suggestions and examples during the textual content, including chapter-ending workouts, and code to be had to obtain from Springer.

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In this case, line 8 of the code uses assignment (a single equals sign) when equality testing (a double equals sign) was intended. This code will have the effect of changing the value of x to the value 4 when this was not intended. The condition which is actually tested is whether or not the assignment was successful. The assignment will be successful, and so this condition is met. The code inside the curly brackets therefore will be executed, and so the variable x will take the value 6. Again, this is valid syntax so the compiler may give no error.

As with the commands for basic manipulation of strings given in Sect. 8, we do not attempt to explain why strings are input in this way: this will become clear when more advanced features of C++ are explained later in this book. 6 The assert Statement Scientific computing applications usually require a massive number of complicated mathematical computations. If any one of these computations is incorrect, then the final results of the computation will usually be incorrect. Finding the source of the error is an excruciatingly tedious process, and so we strongly recommend the use of the features of the C++ language that allow identification of unexpected occurrences such as an attempt to compute the square root of a negative number.

2 Some formatting commands for console output Getting Started Command Symbol new line \n tab \t ’ \’ ” \" ? \? bell sound \a As with certain aspects of string manipulation discussed in Sect. 8, at this stage it is sufficient to understand how to send output to the console immediately without worrying why it is done in this way. flush(); Keyboard Input Keyboard input for numerical variables and characters is achieved using the input stream std::cin, where cin is a contraction of console in. As with console output, the iostream header file must be included.

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