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Modules
As you start to write larger programs, you will want to save the function de?nitions in multiple ?les, collected together according to what they do. So, for example, we may collect a set of utility functions together into in one file, called utility.py. This ?le is known as a module in Python.
Now, if we want to use those procedures in another shell or file, we will require to say import utility so that all those procedures become available to us and to the Python interpereter. Now, if we have a function in utility.py named foo, we may use it with the name utility.foo. You may study more about modules, and how to instance reference functions described in procedures, in the Python documentation.
Every programming language has to have some method for indicating grouping of operations. Here is how you execute an if-then-else structure in Java: if (s == 1){ s = s
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Structured assignment Once we have tuples and lists, we may use a nice trick in assignment expression, based on the packing and unpacking of tuples. >>> a, b, c = 1, 2
Programming models Just as there are several methods for organizing entire software systems, there are different strategies for formally expressing computational processe
A program to count how many files are on the file system which displays summary information regarding the total number of bytes used by all files and a breakdown of the number of b
Worked example 1 Let's examine what happens when we compute the following Python code: def p(x, y): z = x*x - y return z + 1/z >>> p(1.0, 2.0) -2.0
how to make a python programme for van der waals equation of state with surface discontinouty
Procedures in python Procedures are computer program creates that let us capture common patterns of computation by: Grouping together sequences of statements
What are squared matrices?
Bank transfer What if we have two values, representing bank accounts, and need to transfer an amount of money amt between them? Consider that a bank account is show
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