Solving a system of two trigonometric equations

[BrianSoddingBoru4]

This shit is getting tiresome. And I mean tiresome to the point of taking action.

Boru

[Ravenshire]

FA, why won't you just do your own damned homework instead of asking others to do it for you? Cheating your way through school only hurts yourself.

What do you think is the point of school? The point of school is not to learn useful skills. The point of school is to give you a diploma, a piece of paper which is supposed to help you get hired.

While you might get a job with that piece of paper, you'll never keep one without the useful skills you fucking ignorant twat. Quit cheating yourself.

[FlatAssembler]

What do you think is the point of school? The point of school is not to learn useful skills. The point of school is to give you a diploma, a piece of paper which is supposed to help you get hired.

While you might get a job with that piece of paper, you'll never keep one without the useful skills you fucking ignorant twat. Quit cheating yourself.

But being able to synthesize a non-standard regulator (lead compensation and lag compensation) using Bode plot is not a particularly useful skill. I guarantee you the vast majority of programmers, even those working in control engineering, don't know that or need that.

[arewethereyet]

FA, why won't you just do your own damned homework instead of asking others to do it for you? Cheating your way through school only hurts yourself.

What do you think is the point of school? The point of school is not to learn useful skills. The point of school is to give you a diploma, a piece of paper which is supposed to help you get hired.

What is the point of a school that does NOT have teachers, professors, tutors...ya know...people to learn the stuff from?

[FlatAssembler]

What do you think is the point of school? The point of school is not to learn useful skills. The point of school is to give you a diploma, a piece of paper which is supposed to help you get hired.

What is the point of a school that does NOT have teachers, professors, tutors...ya know...people to learn the stuff from?

They are diploma mills, obviously. And I think the university I am attending is first and foremost a diploma mill. I think the professors here are not particularly competent programmers to learn the stuff from.

[BrianSoddingBoru4]

What is the point of a school that does NOT have teachers, professors, tutors...ya know...people to learn the stuff from?

They are diploma mills, obviously. And I think the university I am attending is first and foremost a diploma mill. I think the professors here are not particularly competent programmers to learn the stuff from.

The rallying cry of lousy students everywhere.

Boru

[Fireball]

While you might get a job with that piece of paper, you'll never keep one without the useful skills you fucking ignorant twat. Quit cheating yourself.

But being able to synthesize a non-standard regulator (lead compensation and lag compensation) using Bode plot is not a particularly useful skill. I guarantee you the vast majority of programmers, even those working in control engineering, don't know that or need that.

If you actually want to be a programmer, this is simply shit you have to tolerate. Do you think people are going to throw rose petals in front of you after/if you graduate and get a job? They're going to give you shit that, if you had done your own work at uni, would be approachable, in terms of a solution. In a physics E&M lab at the sophomore level, we had to calculate the resistance necessary for a ballistic galvanometer to reach zero in minimum time. Given how often I've used one of them since, I've decided that the only purpose for that lab was to teach profs and TAs how to use the equipment for a lab. Your posed problem is actually pretty straightforward. You are going to have to work it out for yourself, though. When I started uni and was taking 19 units and working two jobs, I looked into tutoring for some of the calculus I was taking. The tutor had as much trouble as I did, so I buckled down and did it the hard (right) way- I studied.

For the life of me I can't understand why you would come to an atheist-related forum for EE/CS homework solutions. Well, actually, yes, I can.

[FlatAssembler]

They are diploma mills, obviously. And I think the university I am attending is first and foremost a diploma mill. I think the professors here are not particularly competent programmers to learn the stuff from.

The rallying cry of lousy students everywhere.

Boru

Well, like Bryan Caplan put it: "If you want to study at Harvard, you don't need to fill any applications, just move to Harvard and start attending lectures. I am quite sure no professor would have problems with that. And noone does that. That's because, deep inside, everyone knows it's all about the paper, and not about the knowledge.".

[Astreja]

For the life of me I can't understand why you would come to an atheist-related forum for EE/CS homework solutions.

Because it's free? Charge $100 USD per problem, payable in advance.

(pops headache pill and goes back to puzzling over her own math problems, specifically inverse matrix operations)

[Loaded dice]

So, in our Control Engineering classes, in the presentation about synthesizing a regulator using Bode plot (using lead compensation and lag compensation), we have the following system of equations:

omega_lb1 / omega_ln1 = 12.6
atan(2 / omega_lb1) - atan(2 / omega_ln1) = -6 deg

Allegedly, the solution is:

omega_lb1 = 0.2 rad/sec
omega_ln1 = 0.016 rad/sec

But how can that system of equations be solved?

obviously we have omega_lb1 = 12.6 * omega_ln1, we replace omega_lb1 in the second equation and we get :

arctan(2/12.6*omega_ln1) - arctan(2/omega_ln1) = -6

Now set x = 1/omega_ln1, you get : arctan( (2/12,6) * x) - arctan(2x) = -6

Now recall that if |xy| < 1, then arctan(x)+arctan(y) = arctan ((x+y)/(1-xy)), use this (with arctan(-x) = -arctan(x)) to get the solutions.