pi
 

My calculator gives the value of pi as: 3.14159365359

My calculator give the value of 22/7 (3-1/7) as: 3.14285714286


22/7 has a repeating decimal as the value and, as far as I know, pi goes on forever.

Anyway -

for most purposes in my life - as in drafting a pattern - 22/7 - works well enough for most calculations.
0.00126 - a bit more than one-thousandth of an inch variation will probably work well enough with 'a scant quarter inch' seam

Ohhhh, my head hurts!!:shock:

You're so funny!

Jan in VA

The calculator value is much more accurate. 22/7 is an approximation for use with fractions. As you say, however, either one is close enough to get you scant quarter seamline.

laura

Pi...i like mine cherry!!! (Lol) :)

Huh?? LOL that is very odd. :)

ooh, good one, hahaha

My Granddaughter is taking college math and not getting it. I'm no good, I think the basics are plenty for the average person. I learned fractions by using them in cooking and baking, doubling recipes made them second nature to me. I do love calculators.

Spelling use to be the easiest thing for me but as I age, not so much.

Help with college algebra
 

I teach math and will suggest that your granddaughter first see if there is a tutoring center at her college that can help. These are often staffed by math geeks who work there as part of their work-study financial aid. If not, there is a book called Algebra to Go (available on Amazon) that will help. It is part of a series that includes Math on Call and a couple more. These are not workbooks but are math reference books. I always find that they explain things clearly and simply, and use easy-to-understand drawings to help. Pi can be pretty straightforward if you have a good calculator and approximate it as 3.14, but some professors want it approximated as something longer then you end up rounding all of your answers and then the trouble begins......

I still think that 22/7 is a good APPROXIMATION of the ratio of a circle's circumference to it's diameter.

It seems very logical to me from a metaphysical/numerological viewpoint.

I want to see the movie that just came out.