Math Is Fun Forum

StarShine

Member

Registered: 2012-01-11

Posts: 16

Re: The formal definitions of the functions

Oh I understand that concept. but when it comes with decimal numbers. It would take too long to find out the answer.

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: The formal definitions of the functions

HI;

Why do you need to find the decimal? Just leave it as 14 / 5.

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In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

StarShine

Member

Registered: 2012-01-11

Posts: 16

Re: The formal definitions of the functions

Good point. But the thing is I am not sure how to calculate 14/5 without a calculator.

John E. Franklin

Member

Registered: 2005-08-29

Posts: 3,588

Re: The formal definitions of the functions

Double 14 to 28 and move the point over to 2.8

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igloo myrtilles fourmis

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: The formal definitions of the functions

Yes, that is one way. But you do not have to.

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In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

anonimnystefy

Real Member

From: Harlan's World

Registered: 2011-05-23

Posts: 16,049

Re: The formal definitions of the functions

hi StarShine

another way is using long division:

14:5=2.8
-10
----
   40
  -40
  ----
     0

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“Here lies the reader who will never open this book. He is forever dead.
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.