"JAXAshby" wrote in message
...
I define it as a "Math Problem" because the subject of the thread is "Math
Problem."

and that proves my statement that you did not understand the question. It
could have been called "Grapefruit" without changing the question -- and
answer
-- at all.


Its was called a "math problem" and its was posed as a "math problem." You
couldn't answer it.




You forget the I spent 6 years programming navigation for NASA spacecraft.

no you didn't "spend 6 years programming navigation". you may have spent time
coding nav programs, but that is not hardly "programming navigation".
a good
coder -- and everyone else within sight of the code -- knows the difference.

Tell us the difference, please.

Only a hack coder trying to to lay the cocktail waitress would claim to be
"programming navigation".

High school trigonometry
is not that difficult for me.

It isn't difficult for anyone. That is why it is taught in high school.

If you took it you might know how to solve the problem.


Its on page 325 of the current Bowditch.

so, you did look it up rather than recall it from memory. so much for
"programming navigation" for NASA.

Actually I just looked up Bowditch for that post. For the first post I simply
googled "law of cosines" and had the formula in less than a second. I certainly
didn't want to post the wrong answer, like you. Frankly, I like spending a few
minutes working out trig or physics problems. I did it for a living for 25
years, and now that I'm retired I miss it a bit.

Had I been on the boat I probably would have done it on a chart. You probably
don't know that method either, do you?


The context was as a "Math Problem." Look at the subject of this thead.

no, the context was "Grapefruit". Look at my head.

I couldn't have said it better.


If you are unable to do a "Math Problem" why do you keep
contributing to this thread?

I solved the actual problem -- in my head without looking up any math --
within
a couple minutes of the original posting, and posted an explanation that keep
the math in it proper place in the background. It was not a math problem, but
rather a concept problem. Lower life forms have a hard time dealing with
concepts.

Then why was it called a "math problem"? I think everyone understands that it
would take a current from the SW to push you E when your course is S.
Obviously, anyone as slow as you could figure that much out. The question was
exactly what was the current, and what happens if you change the numbers a bit?


I'll bet there were a few people out there whose memory of trig was refreshed
a bit.

for what purpose? To show that you could look up a math formula used by no
one? Besides, you didn't need the trig to get the answer. *you* used the
trig, but no one else was required to.

Donal was the only person besides to even attempt both problems. He did it
graphically, which is appropriate. I worked it out with trig to double check
Donal's work.



Remember Jaxie, you not only got a inaccurate answer to the first question,
you didn't bother to
answer the second.

you dumb cluck, jeffies. "a little over 7 knots" IS the right answer when the
course shift is 90* rather than 100*. In fact, the EXACT number is Sq Rt 50.
To this moment you have no idea why that is true.

So the problem posted was too hard for you so you simply gave the answer to a
problem that you knew. How special.

You still didn't answer the second problem.


And making a guess that's 5 degrees off is not very good navigation.

it wasn't a navigation question, jeffies. It was a concept question.

Keep telling yourself that jaxie. You don't need to know how to navigate, you
just need to know the "concept."

jeffie, listen to me. every last person who reads this ng and who has actually
studied physics or math KNOWS that your claim of a degree (BS, let alone BS) is
bogus just by reading your nonsense below. utter nonsense, to everyone who has
studied even one semestrer in what you claim to have a degree in.

Your complete lack of familiarity of the underlying and overlying concepts
makes a lie of your claim.

Discussing concepts with you is like discussing auto mechanics with an art
history major.

Right, jaxie, and everyone thinks you're the "definitive reference" for
navigation, mathematics, and science.


"JAXAshby" wrote in message
...
jeffie, listen to me. every last person who reads this ng and who has
actually
studied physics or math KNOWS that your claim of a degree (BS, let alone BS)
is
bogus just by reading your nonsense below. utter nonsense, to everyone who
has
studied even one semestrer in what you claim to have a degree in.

Your complete lack of familiarity of the underlying and overlying concepts
makes a lie of your claim.

Discussing concepts with you is like discussing auto mechanics with an art
history major.

jeffie, the problem was solved days ago. Everyone else understood that, how
come you are so slow to catch on. didn't you say you had an arts degree in
physics from Potatoe State of some such? keep up Forrest.

Right, jaxie, and everyone thinks you're the "definitive reference" for
navigation, mathematics, and science.


"JAXAshby" wrote in message
...
jeffie, listen to me. every last person who reads this ng and who has
actually
studied physics or math KNOWS that your claim of a degree (BS, let alone
BS)
is
bogus just by reading your nonsense below. utter nonsense, to everyone who
has
studied even one semestrer in what you claim to have a degree in.

Your complete lack of familiarity of the underlying and overlying concepts
makes a lie of your claim.

Discussing concepts with you is like discussing auto mechanics with an art
history major.

"Jeff Morris" wrote in message
...

Donal was the only person besides to even attempt both problems. He did
it
graphically, which is appropriate. I worked it out with trig to double
check
Donal's work.

Hey! I'd be grateful if you would stop using me to back up your position.
You wrote off my initial answer as being little better than Jax's. I think
that you must be feeling a bit desperate if you are now trying to use me in
your argument against Jax.

I worked out my answer using a Breton plotter, and a bit of paper, at 20
minutes to midnight, on a Saturday, after a meal and a bottle of wine. You
used log tables, at 9:30 am. I feel that I have nothing to be ashamed of.

I don't consider log tables to be part of the traditional navivator's
toolbox.

I've done this sort of nav for real, at sea.. .... many times. I do it to
within 1* of accuracy. If you need to use log tables, *or* if you need to
be able to calculate square roots, then you shouldn't consider yourself to
be capable of doing navigation. You are both as bad as each other.

Regards


Donal
--

donny, sq rt 50 is easy to do in one's head.

besides, it was not a navigational problem.

Hey! I'd be grateful if you would stop using me to back up your position.
You wrote off my initial answer as being little better than Jax's. I think
that you must be feeling a bit desperate if you are now trying to use me in
your argument against Jax.

I worked out my answer using a Breton plotter, and a bit of paper, at 20
minutes to midnight, on a Saturday, after a meal and a bottle of wine. You
used log tables, at 9:30 am. I feel that I have nothing to be ashamed of.

I don't consider log tables to be part of the traditional navivator's
toolbox.

I've done this sort of nav for real, at sea.. .... many times. I do it to
within 1* of accuracy. If you need to use log tables, *or* if you need to
be able to calculate square roots, then you shouldn't consider yourself to
be capable of doing navigation. You are both as bad as each other.

Regards


Donal
--

"JAXAshby" wrote in message
...
donny, sq rt 50 is easy to do in one's head.

Yeah, you're right!

7.071067811865475244008443



Regards


Donal
--

doonyy, the context was boating so your calculation was needlessly precise
without gaining utility. but I am glad you can calculate square roots in your
head accurately to 21 decimal places.

The rest of us find that "a little over 7 knots" gives us more than enough
precision AND accuracy in the context of boating.

donny, sq rt 50 is easy to do in one's head.

Yeah, you're right!

7.071067811865475244008443



Regards


Donal
--

"Donal" wrote in message
...
"JAXAshby" wrote in message
donny, sq rt 50 is easy to do in one's head.

Yeah, you're right!

7.071067811865475244008443

You stopped just when it was getting interesting.

"Jeff Morris" wrote in message
...
"Donal" wrote in message
...
"JAXAshby" wrote in message
donny, sq rt 50 is easy to do in one's head.

Yeah, you're right!

7.071067811865475244008443

You stopped just when it was getting interesting.

I'm a tease, huh?



Regards


Donal
--