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1 *Script |
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4 *Hello and welcome to this tutorial on Basic Python using Python. |
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6 This tutorial formally introduces Python as a language . Through this tutorial we will be able to understand Basic Data types like number , Boolean and strings .Some basic operators , simple input/output and basic conditional flow . |
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8 In numbers Python supports three kinds of data types , |
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10 floats,integers and complex numbers |
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12 An integer can be defined as follows : |
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13 a=13 |
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15 This make a an integer variable with value 13 . |
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17 You can also type 9 around 20 times |
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19 a=99999999999999999999999 . as you can see Python does not have a limit on how long an integer has to be . Isn't that great . |
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21 Now will try a float. |
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23 let's type |
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24 p=3.141592 if you type out p now you will notice that it is not absolutely equal to p you typed in . The reason for that is how a computer saves decimal values . |
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26 Apart from integer and float, Python has an in-built support for complex numbers. Now we try to assign a complex value to a variable . |
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27 Type: |
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28 c = 3+4j |
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29 As you can see ,the notation for complex numbers is similar to the one used in electric engineering. |
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30 We will now try some operations on complex numbers . First we will try to get the absolute value of the complex number . For this we will use the abs built in function . For this do : |
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31 abs in parenthesis c . |
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33 Do get the imaginary part of c you can do : |
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35 c.imag |
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36 |
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37 and similarly for real part do : |
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39 c.real |
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41 Python also has Boolean as a built-in type . |
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43 Try it out just type .. |
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44 t=True , note that T in true is capitalized . |
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