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Expressions and assignment
We can think of most computer programs as performing some sort of transformation on data. Our code may get as input the exam scores of everyone in the class and generates the average score as output. Or, in a transducer architecture, we may think about writing the program that takes the current memory state of the transducer and an input, and calculates a new memory state and output.
To represent data in a computer, we have to code it, ultimately as sequences of binary digits (0s and 1s). The primary memory of a computer is spited into 'words', which typically hold 32 or 64 bits; a word can be used to save a number, one or various characters, or a pointer to (the address of) another memory location.
A computer program, at the lowest section, is a set of primitive statement, also encoded into bits and saved in the words of the computer's memory. These instructions defines operations to be operated on the data (and sometimes the program itself) that are stored in the computer's memory. In that class, we will not do at the part of these low-level instructions: a high-level programming language such as Python lets us abstract away from these information. But it is very important to have an abstract model of what is going on within the computer.
Print vs Return Here are two different method declarations: def f1(x): print x + 1 def f2(x): return x + 1 What happens when we call them? >>> f1(3) 4 >>
Write a Python program to accomplish the following. Use modular design. Include at least 3 functions: one that returns zero values, one that returns one value, and one that retu
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
When investing money, an important concept to know is compound interest. The equation FV = PV (1+rate)periods . This relates the following four quantities. The present value (
how to make a python programme for van der waals equation of state with surface discontinouty
Write an algorithm for a program that shows the use of all 6 math functions. Write, test, and debug the program using Python. SAMPLE OUTPUT (not including author/program infor
inputWithinRange (prompt, lowValue, highValue) This function will ask for a number using the prompt parameter. The function will only return a value that is within the inclusive ra
Procedure calls When you compute an expression of the form ( , ..., ) the Python interpreter treats this as a procedure call. It will be simpler to talk about
What if you had a list of integer values, and you need to add them up and give the sum? Here are a number of different types of doing it. First, here is a type in a style
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