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May 17th, 2018, 01:58 AM  #1 
Newbie Joined: May 2018 From: kiev Posts: 3 Thanks: 0  Help me this the formula
Hello! I need your help to formulate this relationship correctly. Daily change in A follows the daily change in C. The higher A the higher C and vice versa. F(x)=A(d)Δ > C(d)Δ Can you please comment if the above is ok? Dave 
May 17th, 2018, 12:13 PM  #2 
Global Moderator Joined: May 2007 Posts: 6,762 Thanks: 697 
Your symbolism needs clarification.

May 28th, 2018, 06:32 AM  #3 
Newbie Joined: May 2018 From: kiev Posts: 3 Thanks: 0 
Let's say there is this relationship: P tends to be equal to S with absolute value of S going to 1. Can you help me formulate this in symbols? Last edited by skipjack; May 28th, 2018 at 09:41 AM. 
May 28th, 2018, 12:52 PM  #4 
Global Moderator Joined: May 2007 Posts: 6,762 Thanks: 697 
Your statement is still unclear. Is S variable? How is P varying?

June 4th, 2018, 12:15 AM  #5 
Newbie Joined: May 2018 From: kiev Posts: 3 Thanks: 0 
S and P are both variables that can move randomly, but when S rises to 1, P tends to approach S.
Last edited by skipjack; June 5th, 2018 at 06:56 PM. 
June 4th, 2018, 01:32 PM  #6 
Global Moderator Joined: May 2007 Posts: 6,762 Thanks: 697 
$\lim_{S\to 1}P=S$ seems to be what you are asking. I am not sure you want S or S to approach 1.

June 5th, 2018, 04:30 PM  #7 
Senior Member Joined: Aug 2012 Posts: 2,312 Thanks: 707  What is $\Delta$? Usually we say $\Delta x$ or $\Delta y$ or whatever variable we care about. In other words delta is the change in some particular variable. So your usage is unclear.


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