Google Image Result for http://www.eetasia.com/IMAGES/EEOL_2008MAR15_POW_NT_01_fig1.jpg
how can i get the equation of the function in red?
Printable View
Google Image Result for http://www.eetasia.com/IMAGES/EEOL_2008MAR15_POW_NT_01_fig1.jpg
how can i get the equation of the function in red?
looks like a basic sine wave with amplitude of 175 and period of 50 ...
$\displaystyle V(x) = 175\sin\left(\frac{\pi x}{25}\right)$
http://www.eetasia.com/IMAGES/EEOL_2...NT_01_fig1.jpg
How did you get the period of pi/25??Quote:
Originally Posted by skeeter
isn't the period 50?
did you not read the first line in my post?
fyi, $\displaystyle \frac{\pi}{25}$ is not the period ...Quote:
looks like a basic sine wave with amplitude of 175 and period of 50 ...
I recommend you research the role of the value $\displaystyle B$ in the equation $\displaystyle y = A\sin(Bx)$.
nvm got it, lol, 2pi/50 is B, correct?Quote:
Originally Posted by skeeter
that's what my post stated.Quote:
Originally Posted by ahmedb
yep, thanks alot!! any "like" or thanks button on this forum?Quote:
Originally Posted by skeeter
how can you convert it to cos?
Pretty simply. $\displaystyle sin(u) = cos\left(\frac{\pi}{2} - u\right)$
