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#1 2012-10-16 09:55:38

ShivamS
Member
Registered: 2011-02-07
Posts: 3,630

Limits

Limits are weird. Alas, now no one can change the notation from:
lim f(x) = b to lim f(x) = ->b
x->a              x->a

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#2 2012-10-16 10:44:58

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,673

Re: Limits

Why would anyone want to change it. If we included the arrow, then the limit operator would be redundant...


“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

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#3 2012-10-16 11:23:37

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 90,799

Re: Limits

Math notation is still evolving. There are many bits of notation that have not been standardized.


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

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#4 2012-10-17 02:53:36

ShivamS
Member
Registered: 2011-02-07
Posts: 3,630

Re: Limits

Although I highly doubt anyobne would give heed to my suggestion.

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#5 2012-10-17 06:47:57

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,673

Re: Limits

You should first give good arguments on why you think your notation is better and then publish it somewhere and somehow...


“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

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#6 2012-10-17 10:09:00

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 90,799

Re: Limits

Usually someone writes a paper on something else and includes his idea/notation. Others see and go crazy over it.


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

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#7 2012-10-17 11:24:28

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,673

Re: Limits

True, but I remember a document by Knuth about the use of Iverson brackets.


“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

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#8 2012-10-17 11:31:25

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 90,799

Re: Limits

Iverson brackets. I haven't heard that phrase in over a millennium.


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

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#9 2012-10-17 11:58:15

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,673

Re: Limits

I like those, for some reason. They remind me a little of the "if" statement in programming languages and is very useful.


“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

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#10 2012-10-17 12:10:51

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 90,799

Re: Limits

The trouble is it conflicts with the sometimes usage of the integer function [ ].


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

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#11 2012-10-17 12:47:23

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,673

Re: Limits

Well, the differ by the argument and you can also use the floor function notation to represent the integer function.


“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

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#12 2012-10-17 12:59:37

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 90,799

Re: Limits

Hmmmm. But didn't the integer function come first? I do not see what right that upstart Iverson operator has to steal some other operators symbol?


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

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#13 2013-12-25 22:31:09

kapila
Member
Registered: 2013-12-25
Posts: 1

Re: Limits

∫sin2x/(x+sinx)(2+sinx)  dx please help me to find answer fo above problem

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#14 2013-12-25 22:52:28

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 90,799

Re: Limits

Hi;

Is this the problem?


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

Offline

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