Small Maths Problem...need Helps Please

[weegee]

Do you remember the slate board, and inslate pencil,stead of paper.....ooooops i do.

eeeeeeeeeeeer, no, that was the bare feet days, just a tad before my time.

You wore SHOES to school???....

Well yeh...................................

shoes.jpg

We were posh...............................

No steel toe huh?....also see you cant affford a tin of Nugget...

[Chittychangchang]

Shiny toe caps to look under girls skirts hey!

Detention for you me laddie, go report to the headmistress now and take your punishment....

[Phronesis]

Mmmmmmmmmmmmmmmmmmmmmmmmmm...pie

[Bagwan]

My Dad used to walk to school in bare feet and put his boots on at the school gate. Anybody arriving at school with dirty boots was caned. The Good Old Days

[ABCer]

Pi is 22/7, so there isn't any exact answer, but you can get close enough depending on your tolerances.

Pi is not 22//7. Pi is an irrational number, which means that you can't make a fraction of it with 2 integers.

That's true but I remember in high school when we used slide rules that was what we were told to use. Yes, slide rules do date me.

In my time they used to call them Log rulers, from Logarithm. Very precise, surprisingly easy and no need of batteries. We were also forbidden to use calculators up to year 9! Would you believe it!

Back then I thought it to be unreasonable, but now I think it to be very useful for many reasons.

First, you can calculate with a pencil and paper or a stick and sand.

Second, you can appreciate a good formula and algebra.

Third, you get a feeling of estimated (approximated) result in your head.

Fourth, if you pushed the wrong button you can see that your 'result' is wrong.

But I am an old, old, old-fashioned crazy man. Don't listen to me ...

To date Tywais you will need carbon dating

Edited June 10, 2013 by ABCer

[tutsiwarrior]

log functions are easy to plot...ye just gotta have an idea about the location of the asymptote...

me, I useta use calculators a lot because my arithmetic skills weren't very good...

and the instructors would say in exasperation: 'how did yew get in here???!!! yew can't even do simple sums!!!...'

but I sure could do them logs and multivariable n-order diff. equations...ye didn't need numbers so much for that ones...just for the initial conditions to see if we had pressure or a vacuum...

yuk, yuk, yuk...they were a buncha sissies that were uncomfortable around girls...

but me best instructor didn't concern himself much with girls...when he wasn't in the classroom with superb exposition he was a sufi dancer and a jew to boot...

just goes to show that the usual assumptions can be shot down easily with observation and inquiry...

Edited June 10, 2013 by tutsiwarrior

[Neeranam]

Just off the top of my head these are the first few accurate digits of Pi.

3.141592653589793238462643383279502884197169399375105820974944592307816406286 208998628034825342117067982148086513282306647093844609550582231725359408128481 117450284102701938521105559644622948954930381964428810975665933446128475648233 786783165271201909145648566923460348610454326648213393607260249141273724587006 606315588174881520920962829254091715364367892590360011330530548820466521384146 951941511609433057270365759591953092186117381932611793105118548074462379962749 567351885752724891227938183011949129833673362440656643086021394946395224737190 702179860943702770539217176293176752384674818467669405132000568127145263560827 785771342757789609173637178721468440901224953430146549585371050792279689258923 542019956112129021960864034418159813629774771309960518707211349999998372978049 951059731732816096318595024459455346908302642522308253344685035261931188171010 003137838752886587533208381420617177669147303598253490428755468731159562863882 353787593751957781857780532171226806613001927876611195909216420198938095257201 065485863278865936153381827968230301952035301852968995773622599413891249721775 283479131515574857242454150695950829533116861727855889075098381754637464939319 255060400927701671139009848824012858361603563707660104710181942955596198946767 837449448255379774726847104047534646208046684259069491293313677028989152104752 162056966024058038150193511253382430035587640247496473263914199272604269922796

I would go on but I forgot the rest.

I remember on Blue Peter(get down Shep) years ago there was a 12 year old Indian boy who remembered pi to 30,000 digits.

Although I studied Pure Maths at university all I could manage was about 20 digits.

They have discovered pi these days to 3 trillion digits!

Edited June 11, 2013 by Neeranam

[weegee]

I have remembered the first 3 digits.....only because, I received on this thread a few days ago.

What a memory !

[Kevin1908]

Pi is 22/7, so there isn't any exact answer, but you can get close enough depending on your tolerances.

Pi is not 22//7. Pi is an irrational number, which means that you can't make a fraction of it with 2 integers.

Pi is 3.1415926.... a non-repeating decimal.

Circumference of a circle = 2 x pi x radius.

At school I learnt that it was 22/7 and it was years later at Technical College that I learnt 22/7 was only an approximation.