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wendylisette
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how do you type the infinity sign on a graphing calculator ?
 one year ago
 one year ago
wendylisette Group Title
how do you type the infinity sign on a graphing calculator ?
 one year ago
 one year ago

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wendylisette Group TitleBest ResponseYou've already chosen the best response.0
i just write it out ?
 one year ago

wendylisette Group TitleBest ResponseYou've already chosen the best response.0
it says error
 one year ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
thats calculator for: 1x10^(99)
 one year ago

Decart Group TitleBest ResponseYou've already chosen the best response.0
which model
 one year ago

wendylisette Group TitleBest ResponseYou've already chosen the best response.0
TI  84 plus
 one year ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
your comma button has an EE atop it, shift to get it
 one year ago

wendylisette Group TitleBest ResponseYou've already chosen the best response.0
oh i see it now , hold up
 one year ago

austinL Group TitleBest ResponseYou've already chosen the best response.0
Do you have a TI89? These bad boys have an infinity BUTTON!! :D
 one year ago

wendylisette Group TitleBest ResponseYou've already chosen the best response.0
oh no i have a 84 /:
 one year ago

hihi67 Group TitleBest ResponseYou've already chosen the best response.0
lol @austinL
 one year ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
ti84 is the most ill go ... after that they started having to have terabytes for the instruction manuals and i gave up :)
 one year ago

wendylisette Group TitleBest ResponseYou've already chosen the best response.0
@amistre64 it says EE but you said it was IE99
 one year ago

austinL Group TitleBest ResponseYou've already chosen the best response.0
Same thing :)
 one year ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
it not my fault they cant type lol
 one year ago

austinL Group TitleBest ResponseYou've already chosen the best response.0
Button likely says EE, but on screen it should say E
 one year ago

wendylisette Group TitleBest ResponseYou've already chosen the best response.0
ok lemme try
 one year ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
the output on the screen is still: one: 1 2nd, , : E 99: 99
 one year ago

wendylisette Group TitleBest ResponseYou've already chosen the best response.0
is it a one or an I ?
 one year ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
they might have done that to distinguish it fromthe alpha E key :/
 one year ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
an i is not a real numerical value
 one year ago

austinL Group TitleBest ResponseYou've already chosen the best response.0
"Imaginary"
 one year ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
i^k is one of 4 values ... why are you needing an infinity?
 one year ago

wendylisette Group TitleBest ResponseYou've already chosen the best response.0
Find the sum of the infinite geometric series, if possible. Show steps, if possible. \sum_{{j}={1}}^{\infty}4 \cdot 0.5^{j1}
 one year ago

wendylisette Group TitleBest ResponseYou've already chosen the best response.0
hold up
 one year ago

wendylisette Group TitleBest ResponseYou've already chosen the best response.0
\[\sum_{{j}={1}}^{\infty}4 \cdot 0.5^{j1}\]
 one year ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
\[\sum_{{j}={1}}^{\infty}4 \cdot 0.5^{j1}\] \[\sum_{{j}={1}}^{\infty}4 \cdot 0.5^{j}~.5^{1}\] \[\frac{4}{.5}\sum_{{j}={1}}^{\infty}0.5^{j}\]
 one year ago

wendylisette Group TitleBest ResponseYou've already chosen the best response.0
aha now what ? lol
 one year ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
is .5 less than 1?
 one year ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
theres a formula for this ....
 one year ago

wendylisette Group TitleBest ResponseYou've already chosen the best response.0
whats the formula ? im sorry my teacher doesnt give me all this info /:
 one year ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
\[\frac{1r^k}{1r}\] if r < 1, then the limit as k to infinity is \[\frac{1}{1r}\]
 one year ago

wendylisette Group TitleBest ResponseYou've already chosen the best response.0
whats r though ? the common ratio ?
 one year ago

wendylisette Group TitleBest ResponseYou've already chosen the best response.0
but would it be possible to find the sum ?
 one year ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
let me rechk my thought tho ... S = r + r^2 + r^3 + ... + r^n rS =  r^2  r^3  ...  r^n  r^(n+1)  (1r)S = r + 0 .......................... r^(n+1) S= r  r^(n+1)  1  r
 one year ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
if r < 1 then that exponented part goes to 0 leaving us: S = r/(1r) for the sum
 one year ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
might be better stated the r < 1, but why nitpick
 one year ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
\[\frac{4}{.5}\sum_{{j}={1}}^{\infty}0.5^{j}\] \[\frac{4}{.5}~\frac{.5}{1.5}\] \[\frac{4}{.5}=8\]
 one year ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
http://www.wolframalpha.com/input/?i=sum+4%28.5%29%5E%28n1%29%2C+n%3D1+to+inf
 one year ago

wendylisette Group TitleBest ResponseYou've already chosen the best response.0
thanks soooo much !
 one year ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
youre welcome, as far as i know the ti84 does not have an infinite sum function
 one year ago

wendylisette Group TitleBest ResponseYou've already chosen the best response.0
yes im aware haha
 one year ago
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