More Real Life Relations of Sine, Cosine, and other Circular Functions

The Fundamental Circular Functions can be also used in:



Surveying

This graph also shows that while the satisfaction for "providing educational opportunities is low", the importance in the customers' eyes is very low as well. Therefore, ABC Company now has the knowledge needed to allocate their dollars to the most important attributes.

Graphing, can be used in illustrating bacterial growth (as I remember, we studied this)

Calculation of generation time

he exactly doubled points from the absorbance readings were taken and, the points were extrapolated to meet the respective time axis.

Generation Time =   (Time in minutes to obtain the absorbance 0.4) – (Time in minutes to obtain the absorbance 0.2)

                           = 90-60

                           = 30 minutes

Let No = the initial population number

Nt     =   population at time t

N      =     the number of generations in time t

Sine is also used in Pendulum Motion. 

The position of the pendulum bob (measured along the arc relative to its rest position) is a function of the sine of the time.

It is used in signal transmission, television, radio broadcasting involves waves described in sine/cosine.

Diagram of the electric fields (E) and magnetic fields (H) of radio waves emitted by a monopole radio transmitting antenna (small dark vertical line in the center). The E and H fields are perpendicular as implied by the phase diagram in the lower right.

Lastly, it is also used in graphing stock exchanges.

The Philippines Stock Market (PSEi) decreased to 7230.55 Index points in December from 7294.37 Index points in November of 2014. Stock Market in Philippines averaged 2363.05 Index points from 1986 until 2014, reaching an all time high of 7392.20 Index points in May of 2013 and a record low of 129.52 Index points in February of 1986.

Many compression algorithms, like JPEG, GIF, JPG (and other picture formats) use fourier transforms that rely on sine and cosine. In fact most anything involving sound waves will rely on sin/cos. Space flight relies on calculations and conversions to polar coordinates. So do satellites. Ballistic trajectories rely on sin/cos, and there are numerous other uses of them in physics.