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Updated tutorial_vector_math (markdown)

reduz
2014-11-13 19:59:44 -08:00
parent f372e09de5
commit 6577f4d4c0
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tutorial_vector_math.md

@@ -184,7 +184,7 @@ var BA = A-B
Ideally, if the guard was looking straight towards snake, to make eye to eye contact, it would do it in the same direction as vector BA.
The dot product between **F** and **BA** is greater than 0 will determine if Snake has been discovered. This happens because we will be able to tell that the guard is facing towards snake:
If the dot product between **F** and **BA** is greater than 0, then Snake will be discovered. This happens because we will be able to tell that the guard is facing towards him:
```python
if ( BA.dot(F) > 0 ):