Engineer Dude - split from Question on an integral

[Deleted member 4993]

Hi, thank you for the answer. It's not an exercise or homework, I'm trying to program an autopilot for a vehicle and that's the acceleration formula for the engine.
a0, v0, x0 are the initial acceleration, velocity, position, and when I start the car (t=0) they're all zero.
p, r, m, s are constants.
To conclude that acceleration and velocity are zero you just need to replace t in the formulas I provided.
In the acceleration formula it is: (sin(-pi/2) - 1) which makes the numerator go to zero.
In the velocity formula also the numerator is zero since cos(-pi/2) is zero.

You say:

(sin(-pi/2) - 1) = 0 ....................................NO!!

Go to Wolframalpha.com and find out.

Have you taken a course in dynamics?

 

[Fusillo]

You say:

(sin(-pi/2) - 1) = 0 ....................................NO!!

Go to Wolframalpha.com and find out.

Have you taken a course in dynamics?

I'm an engineer dude, I just wrote it wrong, it is (sin(-pi/2) + 1) = 0, look at the formula

 

[Steven G]

I'm an engineer dude, I just wrote it wrong, it is (sin(-pi/2) + 1) = 0, look at the formula

Engineer or not, do not refer to a helper here as a Dude. Beside this person has a PhD in engineering and worked as a college professor of engineering for years.

 

[Fusillo]

Engineer or not, do not refer to a helper here as a Dude. Beside this person has a PhD in engineering and worked as a college professor of engineering for years.

I don't doubt that, but if he has to be rude (while asking questions that show he didn't even read the assignment) I'd rather get no answer. He doesn't have to feel pressured about answering questions just because he's part of the staff.

 

[Deleted member 4993]

I don't doubt that, but if he has to be rude (while asking questions that show he didn't even read the assignment) I'd rather get no answer. He doesn't have to feel pressured about answering questions just because he's part of the staff.

Really - you make a mistake in your response and I am supposed to trudge back and compare and say "oh poor engineer - did not know what s/he was writing"? How much more entitled can you get?

I'm trying to program an autopilot for a vehicle

This is why there is so much trepidation in accepting autopilots - designed by engineers who do not "check" their work for accuracy. But Peter's Principle will take over and cream will rise to the top.

 

[Fusillo]

Really - you make a mistake in your response and I am supposed to trudge back and compare and say "oh poor engineer - did not know what s/he was writing"? How much more entitled can you get?

I don't really want to get into a discussion, I just felt you weren't really trying to help me solve my problem but just answering for the sake of answering. Your answers tell me you didn't even read the formulas. If you felt offended for being called "dude" then sorry about that, english is not my main language and that's a first for me.
Your last sentence about engineers is kinda sad, you didn't need to say that. By the way this autopilot is for a game so I can crash as much as i want, noone will get hurt. Also this is my hobby, not work.

 

[lookagain]

I'm an engineer dude, ...

Fusillo, I just happened upon seeing this post of yours. In those first four words, you are stating that you are a special class of "dude" called an "engineer dude," because you did not place a comma before "dude." I don't think engineer dudes exist. If your intention was to address a member as "dude," then you were wrong for not using their proper username and for not using the comma.

 

[Deleted member 4993]

Fusillo, I just happened upon seeing this post of yours. In those first four words, you are stating that you are a special class of "dude" called an "engineer dude," because you did not place a comma before "dude." I don't think engineer dudes exist. If your intention was to address a member as "dude," then you were wrong for not using their proper username and for not using the comma.

You have to excuse that slip-up!

I just wrote it wrong,

S\he just wrote it wrong - it is your responsibility to correct it read it!!