June 2010
Intermediate to advanced
328 pages
7h 51m
English
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Objective: Use Fractional Numbers Instead of Integers
The integer is a useful data type, but it stores only whole numbers like 1 or 327 or -19. It can’t represent fractional values like 2.5. You need a different data type if you need numbers with more precision than an integer. For example, sums of money are usually represented by numbers with two decimal places, like $19.95.
So, the objective is to store numeric values that aren’t whole numbers and to use them in arithmetic computations. There is an additional objective, although it ought to go without saying: the results of arithmetic computations must be correct.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.