Numeric result for an integral solution to pi

[Danimel]

Homework Statement

I am posting for my son, who needs the full readout for a formula, more than what a small graphing calculator can do. Is there such a program for that? Am I in the right place to get an answer for this?
I would appreciate any help in this for my mathmatical skills are limited, and I would like to help my son who is in prison and does not have access to computers of any sort.

Homework Equations

I need the numeric result of "2 times the inverted sign of 1 minus the inverted sign of 0."
Does it go on forever or does it end?

The Attempt at a Solution

A friend calculated this on a small graphing calculator and got 3.14159265359. What my son needs to know is does this differ from the normal pi with 3.14159265358, or was the calculator simply rounding off the number for the sake of the calculator and its limited displaying capabilities?

 

[Mentallic]

That numerical approximation (which most calculators give) is awfully close to pi. If it's not... well this problem must've been made purposely for the sole intent of deceiving.

I don't understand what the question means though.

2 times the inverted sign of 1 minus the inverted sign of 0.

You might want to try the wolfram calculator, it gives exact answers wherever possible. But you also need to know the syntax to type in the correct question, so if you can be more clear about what the question is, we could help you more with this.

http://www.wolframalpha.com/index.html"

 

[HallsofIvy]

What do "The inverted sign of 1" and "the inverted sign of 0" mean?

 

[Danimel]

I want to thank those who responded to the question posed. It was not a question meant to deceive or trick. My apologies. My son, as I said before, is in prison with no access to computers or calculators. He felt through the work that he had been doing that he had found a finite solution to pi, which I have discovered in my inquiry into this, has already been attempted/done. I would like to thank the person who referred me to the wolframalpha site. Quite helpful. I was simply an English, French, theatre major mom lost in the realm of mathematics on a quest to help her son find answers.

 

[PinkCrayon]

I think she means inverse sine.

 

[Danimel]

I did, and thank you, PinkCrayon. This whole thing has been resolved. I have a renewed appreciation for all mathematical minds of this site. Signing off...and this time it is spelled correctly!

 

[Mentallic]

Ohh you were looking for $$2sin^{-1}(1)-sin^{-1}(0)$$ haha I did sit down to think about what you might mean and this never occurred to me.

 

[Danimel]

Sorry, for the confusion, Mentallic, and thank you, too, for the wolframalpha site suggestion.