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Two simple Math questions or you Neanderthals

Fonz

Fonz

"Q"
Platinum
Ok, lets test who is actualy smart and who's NOT...Hehe

(PS: If you're not in a math oriented field please take no offense,
as this DOES NOT apply to you)

Question #1:

Using any type of convergence scheme, find the roots of:

f(x)= 3X(exp)2-8X+4

Correct to 5 decimal places.

Question #2:

Find the solution to the following equation:

f(x)= (root of)[ 2 + 3i ]


This is SIMPLE MATH. A first YEAR math student can do these
questions in the UK. The ball is now firmly in the US court I
believe....HEHE

Godspeed
 
Re: take no offense...

a simple medical question for you Fonz....

If Satanic Goatslayer removed your left testicle and fed it to you, would the sperm make it to your asshole or would it just have to get there the old-fashioned way?

sorry to have taken offense...
 
i can do it....but i dont feel like it. the funny thing about it is that i learned it in college! functions were completely foreign to me til about 2 semesters ago.

scary huh?
 
I have a perfect quote for your response:

"Sarcasm is the recourse for the weak-minded"

How true.

Godspeed
 
i haven't taken algebra or trig since grade 12 and i've forgotten a lot of it since being an art student has little to do with math problems of that nature.

:)
 
Well while we are asking questions about our homework, guessing you already know the answers, how about this one.

what is the limit of the square of x+1 as x approaches 8, and yes i do have the answer.

This is an easy problem as well.

Fonz, why did you have to put in that stupid imangineary number in teh second problem, you could have made it easier. Also in teh 1st prob was it 3x squared, if so how about factors are (3x-2)(x-2) so x would be 2/3 or 2.

Later
Mitch
 
OK-I have nothing better to do on a Sat. night so I did the second one. BTW I've always screwed up every question posed here in some way, but with this I could check the answer:

f(x) = 1.674 + .896i (approximately)

I think you messed up something in the first one, because the roots are simple or I am reading it wrong...
 
DAMN

I am getting stupider and stupider by the minute, gotta love my spelling. Guess I forgot to go to my english classes.
Maybe I should try using the spell check, ha.

Later
Mitch
 
Ok one more thing

got a proof for you guys. I included the answer.Proof That Girls Are Evil:
First we state that girls require time and money.

Girls = Time x Money

And as we all know, “Time is money.”

Time = Money

Therefore:

Girls = Time x Money
Girls = Money x Money
Girls = Money²

And because “Money is the root of all evil.”

Money = Evil

And as such

Money² = (Evil)²
Money² = Evil

So finally, using substitution, we are forced to conclude that:

Girls = Money² = Evil
Girls = Evil
 
mitch1301 said:
Well while we are asking questions about our homework, guessing you already know the answers, how about this one.

what is the limit of the square of x+1 as x approaches 8, and yes i do have the answer.

This is an easy problem as well.

Fonz, why did you have to put in that stupid imangineary number in teh second problem, you could have made it easier. Also in teh 1st prob was it 3x squared, if so how about factors are (3x-2)(x-2) so x would be 2/3 or 2.

Later
Mitch
Click to expand...

Ask away man. I LOVE math. The limit problemis
fairly easy.

lim (X+1)^2= x^2+2X+1= 64 + 16 + 1= 81
(x-8)

NEXT....LOL

I'll give you a hint on the complex one for you:

F(x)= (root of) [2 +3i }

Therefotre, F(x) MUST BE in the form a + ib

So,

a + ib = (root of) [ 2 + 3i ]

(Square both terms)

a^2 +2aib -b^2 = 2 + 3i

(Remember i^2=-1)

Join, both the real terms and the imaginary terms:

a^2 - b^2=2 and 2aib=3i

So, 2aib=3i, then 2ab=3 and b=3/2a

And so on.....

Godspeed
 
Not bad Fonz

Limits arent bad but if you have to prove all the limit theorems it gets to be a pain in the ass. Only had to do 9 of them so far, hopefully no more.

Later
Mitch
 
You want an example:

OK.

What is the bending moment limit caused by the dynamic
load of two solid-fueled rockets propelling a spacecraft.

Not to mention the vibration effect compounded by the
liquid oxygen-hydrogen thermal reaction and its
gravimetric effect.

Pushing UP something that ways close to 500 000KG
creates A LOT of torsional, dynamic, shear and bending
stressess which pertain to limits. Limits are the tool used
to see if a give part will fail or not.

You know what ESCAPE VELOCITY IS????

Well, the ENERGY needed for escape velocity is VERY
big indeed and IT HAS TO BE CHANNELLED SOMEWHERE.
Most of it through the thrusters, but some of it will heat up the
surrounding alloys and cause exothermic damage.
This damage is also a function of a limit.

Any more examples that you need?

Godspeed
 
FONZ, how about acknowledging my answer as correct? I'm an American :) Oh, please enlighten me: I thought the remains of Neanderthal Man were only found in Europe (specifically Germany and surrounding areas) and not in the Americas...therefore we cannot be classified as directly related to Neanderthals as Europeans can..

BTW while you're at it, why don't you explain to the audience Prandtl's Lifting Line Theory and horseshoe vortices and really get them confused? :)
 
What is the point of this?

Does a lawyer need to know the answer to these questions? A doctor? Do you mean to tell me that all UK'ers can perform these mathmatical problems? I don't think so. So, what is the point?
 
Sorry Fonz, I took the "business" version of calculus and never looked back once I had that useless prerequisite accomplished. I have been in the real world for a bit now and I can safely back up that the course was in fact......USELESS.

I can, however, give you a value on an installed cubic yard of concrete in any metro area of Texas, along with the proper epuipment hours needed for each individual application!
 
Know what annoys me, people who think they're god's gift to Einstein cause they know all these out of this world math problems. Knowing a lot of math doesn't make anyone any more intelligent than a lawyer who knows his laws, or a doctor who knows treatments. Having intelligence is one thing, something knowing certain math has absolutely nothing to do with, and being "smart" is another, something that math like this would have something to do with, but being "smart" is only relative to what you need to be smart in. It just annoys me when people really think they're so much more intelligent than Joe Smith cause they know certain math, OoOooOh, scary.
 
It isn't out of this world math, they are common text book examples of a particular math idea. They are better known as theorems.

I have been up way too long to bother with them, but here is one for you non-American's:

Why does addition, subtraction, etc work the way they do? I.E. What is the proof for these math functions? (yes, there is a proof of addition, subtraction, etc.) Simply put why does 1+1 = 2 or
2 -1 = 1

Why do we use base 10 as our number system?

What are the counting numbers?

What is the set of integers?

What are the set of real numbers?

What is a rational number?

And what is the lim of 1/sin(x)as x goes to infinity?

And as a bonus question what are the Fibbinici numbers and what are their signifigance?
 
Not me, I can build race engines, shoot, build scale models and do engineering, etc.

However, I couldn't write a program to save my soul (if I even have one)
 
"Why do we use base 10 as our number system?

What are the counting numbers?

What is the set of integers?

What are the set of real numbers?

What is a rational number?

And what is the lim of 1/sin(x)as x goes to infinity?"

I know the answers to those :) we just went over it in school.. seems fairly easy
 
Fonzmania you should know that intelligence has nothing to do with being able to solve that math problem...my education consisted primarily of alternative public schooling...so, ask me to tell you the square root of 9 and I'd be glad to answer you.

Teach me how to do that math problem, and I'll solve it.
 
Guys, I asked TWO simple questions not an array of COMPLEX
mathematical problems. Even Chesty said they were fairly
easy.

I'm NOT trying to make anyone look bad I was just trying to see how
many people could actually do them.

And Burniing I, I NEED math for my degree. If you don't know
math in my degree YOU WILL FAIL.. That simple.

Having said this, A LOT of people think math is unnecessary
in real life. I for one do not. It is the MOST important of all
areas. Even computing and economics.

We had a debate on this in Philosophy class(IB)(Most Boooooring
class ever) and math won out by quite some margin.

Godspeed
 
I need maths in my degree, but not as complex as that thank God,

Example.

A patient is to recieve 2 units of plasma (contains 500ml) over 8 hours using an I/V set that delivers 15 drops per ml. Calculate the drip rate in drops per minute.

I never really liked maths, but I had to do applied maths A-Level to get on my course.
 
Last edited:
Damn, I missed a number on the first one:

It should read:

f(x) = 5X(exp)3 -3X^2-8X -9

Now, solve for the roots

IB work. Roughly 1-year past A-level.

Godspeed
 
I understand what you mean about math being important in all fields, but what I meant by saying useless was that the math in my field doesn't need to be as exacting as in yours. When designing structures evreything is so overengineered for safety's sake that calculus applications to moments on beams and cantilevers is really unneccesary. You simply plug and chug on formulas that people much more brilliant than myself derived to come up with numbers of connectors and beam dimensions and weights. Structures are for the most part static (with the exception of wind loads, snow loads, seismic loads, etc.) that dynamics doesn't play that big of a part in the desinging aspect of my industry. I can see your point that in your field the numbers have to be right on that "fine edge" to achieve the dramatic outcomes of putting things into space for cryin out loud.

Didn't mean to be too sarcastic, just foolin a bit. :)
 
What is the bending moment limit caused by the dynamic
load of two solid-fueled rockets propelling a spacecraft.

Not to mention the vibration effect compounded by the
liquid oxygen-hydrogen thermal reaction and its
gravimetric effect.

.....As for that example, it is way above any engineering I ever took, but for starters I'll be needing some material types and their moments of inertia in order to even attempt to design your rocket. I must warn that if you are leaving this desin up to me, I'd only send monkeys up in this rocket!
 
Warik said:


Seeing as how we're all aerospace engineers, no, your last example is sufficient.

-Warik
Click to expand...

That was one of the funniest things I have read in a while. :)

Oh yea, you didn't even spell the title correctly for my fellow neanderthal.
 
Last edited:
Seeing as how I am a structural stress engineer (analyst) with a degree in Aerospace Engineering, I do believe that the higher math is very important. You may not always use it, but at some point you will need it. I took math all the way through advanced engineering math I and had math courses in abstract algebra and number theory as well. I have used calculus for engineering problems.

And while I do agree that it is mostly plug and chug, one still needs to understand where those plug in chugs came from and how to properly apply them. One cannot do that without knowing the math used and the theory behind them.
 
Math is in essence symbolic logic. Learning math therefore invariably helps someone learn to think logically (which is valuable in all occupations)

BUT

I highly doubt your UK students comprehend the significance of imaginary numbers, or roots, etc... Chances are, they are simply solving problems the way they have been instructed. No ingenuity is needed to solve that kind of math. This kind of question is worthless to those who do not have specific necessity for the knowlege needed to solve it.

It would be more helpful for the masses to invest there time in discrete math, and possibly number theory or abstract algebra(group, ring, field theory, etc...) This goes far beyond plug and chug algorithms...
 
Fonz said:
Two simple Math questions or you Neanderthals
Click to expand...

I found it a little humorous that while he may be a whiz at math, he might need improve on the grammer skills by looking at the title of this thread. But what do I know, I couldn't answer those darn confusing math problems
 
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