
Differential Equations Ordinary and Partial Differential Equations Math Forum 
 LinkBack  Thread Tools  Display Modes 
November 22nd, 2016, 04:06 PM  #1 
Newbie Joined: Nov 2016 From: Finland Posts: 3 Thanks: 0  Help read wave
Help read the graph, the formula model is in the picture.

November 22nd, 2016, 06:03 PM  #2 
Math Team Joined: Jan 2015 From: Alabama Posts: 2,922 Thanks: 785 
What do you mean by "read the graph" what do you want to learn from the graph? And why was this posted under "differential equations"? 
November 22nd, 2016, 08:44 PM  #3 
Global Moderator Joined: Dec 2006 Posts: 18,444 Thanks: 1462 
Presumably, "read the graph" means that the values of the four constants in the given equation are to be estimated by inspection of the graph. For example, the equation implies f(0) = B. As the graph shows that f(0) = 1, one can conclude that B = 1. I would suggest that $\beta= 6\pi$. 
November 23rd, 2016, 04:06 AM  #4  
Newbie Joined: Nov 2016 From: Finland Posts: 3 Thanks: 0  Quote:
And that equation is differential equations of second order with 2 complex roots. Last edited by skipjack; February 7th, 2017 at 05:17 PM.  
November 23rd, 2016, 05:52 AM  #5 
Global Moderator Joined: Dec 2006 Posts: 18,444 Thanks: 1462 
If you accept my suggestions that B = 1 and $\beta$ = 6$\pi$, I would further suggest that A = tan(2$\pi$/5). These values of A and $\beta$ are based on assumptions about the exact values of $x$ where the graph's turning points occur. Unfortunately, one can't be so precise in giving the value of $\alpha$, because the graph depicts the function using a rather broad line.


Tags 
read, wave, wawe 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
how do I read this?  GIjoefan1976  Algebra  16  October 6th, 2016 03:09 PM 
read in PARI  Hoempa  Computer Science  13  November 17th, 2012 02:07 PM 
How would you read this  Sasha  Calculus  2  February 3rd, 2012 12:19 PM 
You have to read this book  forcesofodin  Math Books  2  December 12th, 2010 08:00 AM 
unable to read PM  galactus  Calculus  4  December 31st, 1969 04:00 PM 