Practical uses of Maths?

Question

Yo people ! I need a few examples for the use of maths in everyday life ! Dont stick to elementry examples , anything to do with Logs , Trigonometry , Algebra or Calculus is welcome . Send the link if its too long and plz remember - Its urgent - I'm on a deadline , folks

Answer 1

Anyone working in the scientific community uses math everyday. For this reason, math is often called the "language of science." All the things you mentioned...logs, trig, calculus, algebra...are extremely helpful when characterizing things such as electricity, mechanical processes, and many other things.

Answer 2

Its not a joke if I say that your body is using LOG, Trigonometry continuously.

Our ears follow a log curve of intensity while perceiving sound, this is a sort of natural compression technique of High intensity sounds. So doctors should know that comm0n LOG curve of a healthy person to evaluate your Audible sense.

Hmm, Trigonometry, Your Two Eyes !, They are continuously perceiving 3D information with just two eyes.
Other wise how will you sense the distance between you and the other nearby object.
Try insert thread in a needle hole with one eye closed.
Isn't it difficult ?

What happens when you see with both eyes, you are adjusting the thread in three dimensions accurately, then it goes in freely.
But how do you got 3rd dimension with only two eyes?
That's trigonometry !
O! that's a Long story,
Try surf the net for 'applied mathematics'

Algebra, calculus Both are very useful in writing different soft wares or games those simulates a virtual object on your computer screen should know the actual spatial view and transform it to limited screen area. This computing needs algebra calculus.

There are some missiles that can predict the position of its target on fly.Some can virtually chase the targets.
What are running behind? Embeded systems with prediction algorithms in its software !.

All this is applied maths.

Answer 3

A simple example:

Take three pencils (at best of different colors) in your fist and try to draw simultaneously on a sheet of paper with the all three. It's a little tricky, but it works. Now add a fourth to them. You'll see that you almost never get all 4 colors appear simultaneously on the paper. Why is it so?

Answer by analytical geometry: A plane (sheet of paper) is determined by only 3 points (pencils). I.e. through any (non-identical) 3 points you can always draw a plane. With 4 points, one of them will in most cases lie outside of the plane.

But your question is somewhat funny, anyway. You seem to imply that math has always to do with numbers or geometry. Sorry, but this is not true. Actually, mathematics is a collection of guaranteed true statements derived from a "small" number of starting statements (those can be thought as "self-evident truths") and the science of deriving them. These statements can be about numbers (e.g. sin(x)/x cannot be integrated), but also deeply affect our everyday life. For example, it is mathematically proved that there cannot be a perfect legal system. How? The proof actually belongs to computer science, it was done to show that computers have and will always have their limits, but the "computer" in the proof is such a general machine that one can think of a legal system as one, too.

Answer 4

Your urgency doesn't set my deadlines...

That said, "everyday life" is what you make of your own. If you're in business, often times you will need to measure the performance of a system (a supplier, a process, a piece of equipment, etc.). Developing appropriate measurements often means mathematical modeling of cause and effect. Nearly all business systems exhibit oscillations (modeled with sine's and cosine's).

In measuring performance of any system, you will also find that there are always upper limits to performance based upon the design of the system (the processes used, the materials used, the people involved, etc.). The limits of performance are usually modeled using logarithms.

Good luck...