Python Programming for Raspberry Pi, Sams Teach Yourself in 24 Hours

point data type converts the numbers into a special format, the calculations are somewhat inaccurate. You can’t get around this ...

Instead, you can use an augmented assignment: >>> test = 0 >>> test += 5 >>> print(test) 5 >>&g ...

>>> test2 = Fraction(4, 3) >>> result = test1 * test2 >>> print(result) 4/9 >>> Python will ...

After you define a complex number, you can use it in any type of mathematical calculation, like this: >>> result = test ...

TABLE 5.2 Python Number Functions Most of these functions are pretty self-explanatory if you’re working with math. The fsum() fu ...

If trigonometry is your thing, you’ll be glad to know there are plenty of trig functions in the math module as well. Table 5.4 s ...

The math module includes a few statistical math functions for good measure, as shown in Table 5.6. TABLE 5.6 Python Statistical ...

advanced array manipulations right out of the box. There are several different ways to create arrays in NumPy. One way is to cre ...

Click here to view code image >>> a = numpy.array(([1, 2, 3], [4, 5, 6])) >>> b = numpy.array(([7, 8, 9], [0, ...

2. You must import the Python math library in order to use the Python trigonometric functions. True or false? 3. How do you crea ...

Hour 6. Controlling Your Program What You’ll Learn in This Hour: How to use if-then statements How to group multiple statements ...

>>> if (x == 50): print("The value is 50") The value is 50 Try another test using another condition: Click here to vie ...

When you enter the code to test this in IDLE, after you press the Enter key for the if statement, IDLE automatically indents the ...

print("The value is 50") else: print("The value is not 50") The value is not 50 >>> When you use the else statement wit ...

print("and the value is 50") else: print("The x variable has been set") print("And the value is not 50") print("This ends the te ...

Click here to view code image $ python3 script0604.py The value of x is small $ This works, but it is a somewhat ugly way to sol ...

through the different types of comparisons that are available in your Python scripts. Numeric Comparisons The most common type o ...

>>> a = "end" >>> if (a < "goodbye"): print("end is less than goodbye") elif (a > "goodbye"): print("end ...

a is less than b >>> In the previous example, both lists are the same length. To see how Python handles comparing two l ...

>>> c = 0 >>> if (c): print("The b variable has been set") >>> So be careful when evaluating variable ...