How many digits of Pi do you know by heart?

3.14???...

3.1416? whatever....I have never needed to memorize Pi although I am familiar with it and with it's meaning. I abhor all things mathematical but realize its importance and try very hard to understand mathematical concepts even though my brain has a difficult time wrapping around them. Pi is also a letter in the Greek alphabet.

14

what was that old cheer? "secant, tangent, cosine, sine, three point one four one five nine, e to the i, radical pi, fight 'em, fight 'em, WPI (or whatever Institute you happen to be- these cheers usually only appeal to geeky schools).

Cosine, secant, tangent sine
three point one four one five nine

Four. I don't use that kind of math in my day to day life, so I don't think I have any need to know more. To be honest, I don't really remember how Pi is used anyway. Doesn't it have something to do with circles?

3.1415926538, assuming that is right...

Mmmm.... Pie

I'm guessing that you mean for us to include the "3" before the decimal point.

I know 10: 3.141592654

3.1415926535897..., I think.
My favorite mnemonic on the subject: "How I wish I could recollect of circle round the exact relation Archimede unwound" (count the letters)

216 . . . the magical number

I hate it when someone pokes my disembodied brain with a pencil...

I know 11 decimal or 20 binary digits of pi. These both happen to fall in the same range, so I didn't have to check the essay answer, but it was close.

I know four (or five if you include the three :)) - I've never needed more for maths, and I couldn't hope to compete with the nutters (I knew someone who knew it to at least 60 places), so I didn't bother with any more than that.

3.1415927 is what I know

none

all i know is 3.14

LOL. I have no clue what Pi is...could someone fill me in?? :)

I'll attempt to explain it even though I am not sure.

If you take a circle, the circumference of it ( the distance around the edge of the circle ) is 3.1415 etc. times the length of the radius ( the distance between the center of the circle and the outer rim of the circle.

There you go. I think that is what Pi is ?

Anyone, am I correct ?

that explains how to calculate the area of a circle...not the circumference...i think

circumference is the diameter x pi...i think...it's been a long while..i'm rusty

magbast / jen : You haven't explained what pi is though ?

i have no idea how or why p=3.14

Pi is an irrational number.

Pi is yummy

MB: someone drew a big circle, measured it, and did the math.

drdt..ya think?

how did they know that pi would be a constant?

magbast: by doing it many times with lots of circles and always getting the same answer?

so they made huge circles (big enough to walk around and measure exact lengths of circumference)...guess that makes sense...just never occurred to me...i'm stupid...i just fake intelligence to fit in at SC

mb: it gets better, I think it was the Chinese who determined that pi was 3. I guess they attributed the bit left over as measurement error.

3 and I think this is doing exceptionally well for someone who doesn't believe in math.

3.something...that's why I always rely on a calculator