Maths with notepad

Oros

>open notepad
>type x=
>replace x with ((x+2/x)/2) 7 times
>replace x with 1
>copy whole text and paste into calculator

Edit: Make sure you use "replace all".

Oros

Anyone got any more? Can you calculate pi like this?

Oros

This works in windows calculator set to radians.

>type x=
>replace x with (x+xs) 5 times or more
>replace x with 1
>paste into calculator

Victor

Oros wrote: »

>open notepad
>type x=
>replace x with ((x+2/x)/2) 7 times
>replace x with 1
>copy whole text and paste into calculator

If I use 'replace', I'm getting:
((((((1+2/1)/2)+2/((1+2/1)/2))/2)+2/((((1+2/1)/2)+2/((1+2/1)/2))/2))/2)=0.8359375

If I use 'replace all', I'm getting
((((((((((((((x+2/x)/2)+2/((x+2/x)/2))/2)+2/((((x+2/x)/2)+2/((x+2/x)/2))/2))/2)+2/((((((x+2/x)/2)+2/((x+2/x)/2))/2)+2/((((x+2/x)/2)+2/((x+2/x)/2))/2))/2))/2)+2/((((((((x+2/x)/2)+2/((x+2/x)/2))/2)+2/((((x+2/x)/2)+2/((x+2/x)/2))/2))/2)+2/((((((x+2/x)/2)+2/((x+2/x)/2))/2)+2/((((x+2/x)/2)+2/((x+2/x)/2))/2))/2))/2))/2)+2/((((((((((x+2/x)/2)+2/((x+2/x)/2))/2)+2/((((x+2/x)/2)+2/((x+2/x)/2))/2))/2)+2/((((((x+2/x)/2)+2/((x+2/x)/2))/2)+2/((((x+2/x)/2)+2/((x+2/x)/2))/2))/2))/2)+2/((((((((x+2/x)/2)+2/((x+2/x)/2))/2)+2/((((x+2/x)/2)+2/((x+2/x)/2))/2))/2)+2/((((((x+2/x)/2)+2/((x+2/x)/2))/2)+2/((((x+2/x)/2)+2/((x+2/x)/2))/2))/2))/2))/2))/2)+2/((((((((((((x+2/x)/2)+2/((x+2/x)/2))/2)+2/((((x+2/x)/2)+2/((x+2/x)/2))/2))/2)+2/((((((x+2/x)/2)+2/((x+2/x)/2))/2)+2/((((x+2/x)/2)+2/((x+2/x)/2))/2))/2))/2)+2/((((((((x+2/x)/2)+2/((x+2/x)/2))/2)+2/((((x+2/x)/2)+2/((x+2/x)/2))/2))/2)+2/((((((x+2/x)/2)+2/((x+2/x)/2))/2)+2/((((x+2/x)/2)+2/((x+2/x)/2))/2))/2))/2))/2)+2/((((((((((x+2/x)/2)+2/((x+2/x)/2))/2)+2/((((x+2/x)/2)+2/((x+2/x)/2))/2))/2)+2/((((((x+2/x)/2)+2/((x+2/x)/2))/2)+2/((((x+2/x)/2)+2/((x+2/x)/2))/2))/2))/2)+2/((((((((x+2/x)/2)+2/((x+2/x)/2))/2)+2/((((x+2/x)/2)+2/((x+2/x)/2))/2))/2)+2/((((((x+2/x)/2)+2/((x+2/x)/2))/2)+2/((((x+2/x)/2)+2/((x+2/x)/2))/2))/2))/2))/2))/2))/2)=0.010075192...

What am I missing?

Oros

Yeah, use replace all. In the last attempt you haven't replaced x with 1.

Victor

Oros wrote: »

Yeah, use replace all. In the last attempt you haven't replaced x with 1.

You're right. :embarrassed:

0.05314798...?

Oros

Strange. What calculator are you using? It works ok with windows calculator.

Maybe you need some extra parentheses. Try using ((x+(2/x))/2).

Victor

calc.exe - the default calculator in Windows 7.

What is the actual formula?

Oros

I'm using win7 calculator too. This is what should happen:

img.ie/images/2016/02/19/b525eefb0af5bbe3413613c2c17b0ca0.png

Oros

This one's golden.

start: x=
replace term: (1+1/x)
iterations: 15
start value: 1

Victor

Oros wrote: »

This one's golden.

start: x=
replace term: (1+1/x)
iterations: 15
start value: 1

16?

Oros

I dunno wtf you're doing wrong, m8.

Oros

Have you got your replace function in regex mode?