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colors.html #3

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colors.html #3

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95e46d9
Update lesson.json
mikefowler Mar 26, 2014
dc1d690
Update lesson.json
mikefowler Mar 26, 2014
ba9d3a2
Update lesson.json
mikefowler Mar 26, 2014
2f61cac
Update lesson.json
mikefowler Mar 27, 2014
f77f500
fix variable name
nickfun Mar 30, 2014
a5a3569
Merge pull request #2 from nickfun/variable-name
KartikTalwar Mar 30, 2014
eba6271
test colors document
schacon Apr 4, 2014
91976ce
add bloom filter stuff
schacon Apr 5, 2014
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6 changes: 3 additions & 3 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -16,7 +16,7 @@ print num

for i in range(11):
num = num << 1
print number
print num
```

Run it, and you'll see that this is what you get:
Expand Down Expand Up @@ -86,7 +86,7 @@ print num

for i in range(11):
num = num << 1
print number
print num
```

So, about that `<<` thing. `<<` is actually an _operator_ much like `+`, `-`, `*` or `/`. However, while `+-*/` are _arithmetic operators_, `<<` is a _bitwise operator_. It is called **left shift**, and it operates on the _underlying binary representation_ of the number to the left of `<<`. What this implies is that **for every number** (`1`, `2`, `3`, `4`, ...), **there is a binary code equivalent**.
Expand Down Expand Up @@ -153,7 +153,7 @@ print num

for i in range(11):
num = num * 2
print number
print num
```

**What do you think this program outputs?** Here's a hint: remember how after we played the _2048_ game I said to think about the numbers as `2 * 2`, `2 * 4`, `2 * 8`, and so on? Lo and behold!
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