| Spectral analysis decomposes a variable into underlying sine and cosine functions of particular wavelengths or cycles. |
| Similar questions are investigated for the sine transforms rather than the cosine transforms. |
| In fact, it corresponds to the graph of a function called the hyperbolic cosine. |
| The optical path difference is directly proportional to the cosine of the angle of refraction through the coating. |
| We show that the effective reflectance of the bottom is proportional to the average cosine of the bottom slope. |
| Not surprisingly, he also discovered the infinite power series for the cosine and the tangent. |
