StockFetcher Forums · General Discussion · Math help, please<< >>Post Follow-up
graftonian
440 posts
msg #128938
Ignore graftonian
6/4/2016 8:20:53 PM

Is it possible to write SF code to accomplish:

y = e^x

four
4,012 posts
msg #128939
Ignore four
modified
6/4/2016 9:07:26 PM

http://www.stockfetcher.com/forums2/Announcements/More-Math-Functions-Available/32061/-1/32061

http://www.stockfetcher.com/forums2/Announcements/Many-More-Math-Functions/45281/-1/45281

-------------------

/*
exp(indicator): Return the value of e raised to the specified power.
*/

draw exp(rsi(12))

-----------------

guru_trader
485 posts
msg #53923
- Ignore guru_trader
modified 8/9/2007 2:20:06 AM

And, if you want the root of a function simply raise your measure to the decimal equivalent of its fraction. For example ...

the 1st root of the CLOSE = close^(1/1)
the 2nd (square) root of the CLOSE = close^(1/2)
the 3rd (cube) root of the CLOSE = close^(1/3)
the 4th root of the CLOSE = close^(1/4)
Fetcher[
and add column pow(close,1.00)
and add column pow(close,0.50)
and add column pow(close,0.33)
and add column pow(close,0.25)
]



graftonian
440 posts
msg #128946
Ignore graftonian
6/5/2016 1:10:56 PM

Four, I searched for hours, thank you.


four
4,012 posts
msg #128947
Ignore four
6/5/2016 1:39:54 PM

welcome

graftonian
440 posts
msg #128949
Ignore graftonian
modified
6/5/2016 2:59:05 PM

Here is what i was trying to accomplish. Don't know if it is worth time and effort.

Fetcher[
/*creating an IFT based on Williams %R(30)*/
draw Williams %R(30)
/*1. transform and scale W%R to an output range of +5 to -5 */
set{W2, Williams %R(14) + 50}
set{W, W2 / 10}
/*determine e^2W */
set{power, 2 * W}
set{E, exp(power)}
/* numerator is E - 1 and denominator is E + 1 */
set{num, E - 1}
set{denom, E + 1}
/* And finally W_IFT */
set{W_IFT, num / denom}
add column W_IFT
draw W_IFT
draw W_IFT line at .6
draw W_IFT line at -.4
/* scale W to superimose on W_IFT */
set{scale_W, W / 5}
draw scale_W on plot W_IFT
]



Back in my flying days it was said that the best instrument would be one that had two segments; a green one labeld OK, and red one labeled BAIL OUT! No gray area

StockFetcher Forums · General Discussion · Math help, please<< >>Post Follow-up

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