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>> SPEAKER 1: Suppose I'd like to write
a program that prints out a float,

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specifically the result
of dividing 1 by 10.

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Well, my first instincts would be to
write this program as follows.

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Float f equals 1 divided by 10, and then
print f of percent .1f, thereby

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signifying that I'd like to print
a float to one decimal place,

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backslash n comma f.

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Let's now compile this program.

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Make float 0 dot slash float 0.

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>> Well, that's not quite right.

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I'm quite sure that 1 divided by 10, or
1/10 is not 0.0, but 0.1, and yet

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here I'm seeing on the screen 0.0.

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What's going on?

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Well, it turns out that in c, if
you divide an int by an int,

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you get back an int.

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And so even though 1 divided by 10 is
indeed 0.10, 0.1 cannot fit in an int,

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and so what c does is it truncates, or
throws away everything after the

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decimal place, thereby leaving
us with just 0.

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>> But then, of course, with print f, we
specify that we'd like to print f to

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one decimal place, and so that
0 is displayed as 0.0.

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Well, clearly this is a problem
that needs a solution.

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