- trigonometry, the law of
cosines (also
known as the
cosine formula or
cosine rule)
relates the
lengths of the
sides of a
triangle to the
cosine of one of its angles...
- {\displaystyle i={\sqrt {-1}}} , both sine and
cosine functions can be
expressed in
terms of real sines,
cosines, and
hyperbolic functions as:[citation needed]...
- In
analytic geometry, the
direction cosines (or
directional cosines) of a
vector are the
cosines of the
angles between the
vector and the
three positive...
- {CB}).}
Using the
cosine addition and
subtraction formulas,
these two
inequalities can be
written in
terms of the
original cosines, cos ( A , C ) ⋅...
- is preferable. A
variation on the law of
cosines, the
second spherical law of
cosines, (also
called the
cosine rule for angles) states: cos C = − cos...
- of
cosines can be used to
determine a side of a
triangle if two
sides and the
angle between them are known. It can also be used to find the
cosines of...
- ISBN 978-0-8247-9581-8. "
Cosine Error".
Dover Motion.
Retrieved 2021-09-25.
Calculated directly from the
values of the
cosines of
these angles,
which are...
-
between a DCT and a DFT is that the
former uses only
cosine functions,
while the
latter uses both
cosines and
sines (in the form of
complex exponentials)....
- In mathematics, the
Fourier sine and
cosine transforms are
integral equations that
decompose arbitrary functions into a sum of sine
waves representing...
- The raised-
cosine filter is a
filter frequently used for pulse-shaping in
digital modulation due to its
ability to
minimise intersymbol interference (ISI)...
