# Math Is Fun Forum

Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫  π  -¹ ² ³ °

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## #1 2014-02-19 14:20:28

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

### How a computer sees it.

1) To a computer the number line is not solid like they draw it in mathematics. Instead it looks like the dots and dashes of morse code. This is because some numbers do not exist for a computer. For instance there is no 1 / 3 on its number line, just a big hole.

2) (a - b)(a+b)≠(a^2 - b^2). Algebraically equal expressions are not equal to a computer.

4) A computer can not subtract or multiply without possible disastrous error.

5) You never use the quadratic formula to solve a quadratic equation because on a computer it might give inaccurate results.

6) Newton's iteration though taught is rarely the best one for the job.

7) A computer can not always compare theoretically equal quantities.

8) There is a largest number to a computer.

9) A computer can have three states for a matrix, singular, non singular and nearly singular!

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.

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## #2 2016-02-20 22:14:58

Agnishom
Real Member
From: Riemann Sphere
Registered: 2011-01-29
Posts: 24,968
Website

### Re: How a computer sees it.

bobbym wrote:

Like everything else, machines do it better.

'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
I'm not crazy, my mother had me tested.

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## #3 2016-02-22 01:36:57

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

### Re: How a computer sees it.

I may have been a bit hasty when I wrote that. I meant to say a lot better.

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.

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## #4 2016-02-22 22:25:51

mathaholic
Member
From: Earth
Registered: 2012-11-29
Posts: 3,251

### Re: How a computer sees it.

To post #1: Uh huh. I get it.

Mathaholic | 10th most active poster | Maker of the 350,000th post | Person | rrr's classmate

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## #5 2016-02-23 02:54:29

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

### Re: How a computer sees it.

That is very good!

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.

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## #6 2017-07-21 06:00:28

Agnishom
Real Member
From: Riemann Sphere
Registered: 2011-01-29
Posts: 24,968
Website

### Re: How a computer sees it.

Hey bobbym;

'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
I'm not crazy, my mother had me tested.

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## #7 2018-02-06 09:15:34

ericnumberking
Member
From: Vancouver
Registered: 2018-02-06
Posts: 5

### Re: How a computer sees it.

bobbym wrote:

I may have been a bit hasty when I wrote that. I meant to say a lot better.

And the truth shall set you free . . . good one! It is come to my knowledge that orthodontist software used in practices use this too.

Last edited by ericnumberking (2020-11-30 05:29:18)

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## #8 2018-07-24 01:11:03

George,Y
Member
Registered: 2006-03-12
Posts: 1,379

### Re: How a computer sees it.

ericnumberking wrote:
bobbym wrote:

I may have been a bit hasty when I wrote that. I meant to say a lot better.

And the truth shall set you free . . . good one!

He has passed away.

X'(y-Xβ)=0

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