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Just the basics.
Calculation of sine, cosine, tangent.
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| sine A |
= |
a / c |
= |
. / . |
= |
. |
| cosine A |
= |
b / c |
= |
. / . |
= |
. |
| tangent A |
= |
a / b |
= |
. / . |
= |
. |
- See why
0 < sine A < 1
0 < cosine A < 1
- Watch how tangent A increases quickly when A becomes close to 90 degrees.
- When A is less than 5 degrees, sine A and tangent A are almost the same (up to 3 decimal points). This is a well-known approximation that can be useful in some real-world applications.
This simulation uses Java.
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