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Student Support Forum: 'Unable to plot this... :( PLEASE, HELP' topicStudent Support Forum > General > "Unable to plot this... :( PLEASE, HELP"

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Author Comment/Response
Paco
12/29/09 10:09am

After introducing these parameters in steps:

{c0GaN = 5.1850, a0GaN = 3.1884, c0InN = 5.70374, a0InN = 3.53774,
c0AlN = 4.98089, a0AlN = 3.11197, C11GaN = 374, C12GaN = 138,
C13GaN = 101, C33GaN = 395, C44GaN = 98, C11InN = 237, C12InN = 106,
C13InN = 85, C33InN = 236, C44InN = 53, C11AlN = 395, C12AlN = 137,
C13AlN = 107, C33AlN = 404, C44AlN = 117}

{c0[x] = x c0InN + (1 - x) c0GaN, a0[x] = x a0InN + (1 - x) a0GaN,
C11[x] = x C11InN + (1 - x) C11GaN,
C12[x] = x C12InN + (1 - x) C12GaN,
C13[x] = x C13InN + (1 - x) C13GaN,
C33[x] = x C33InN + (1 - x) C33GaN,
C44[x] = x C44InN + (1 - x) C44GaN}

{f[x] = (a0[x] - a0GaN)/a0[x], \[Nu][x] = C13[x]/(C11[x] + C12[x])}

{b1[x] = Sqrt[c0[x]^2 + a0[x]^2], \[Lambda]1[x] =
ArcTan[c0[x]/a0[x]], \[Beta]1[x] = \[Pi]/2}

{R = Cos[\[Lambda]1[x]], S = Cos[ \[Beta]1[x]]}

I define the following equation:

hF1 = ((b1[x]*R)/(
2 f[x]))*(1 + ((1 - (1 - (S^2*\[Nu][x])))/(
4 \[Pi]*(1 + \[Nu][x])*R^2)))*Log[hF1/b1[x]]

AND A VERY LARGE OUTPUT IS GENERATED;

Well I want to Plot[hF1,{x,0,1}] but it runs "infinitely" without solution; I TRIED TO SIMPLIFY and FULLSIMPLIFY (AND OTHER OPTIONS) USING THE ASSUMPTION 0 < x < 1 AND I AM NOT ABLE TO MAKE SHORTER THE SOLUTION (again infinite running).

PLEASE, HAVE YOU A METHOD AT LEAST TO FIND AN APPROXIMATED SOLUTION TO PLOT?, I DO NOT NEED A BIG ACCURACY IN THE SOLUTION OF EACH "x"...

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Subject (listing for 'Unable to plot this... :( PLEASE, HELP')
Author Date Posted
Unable to plot this... :( PLEASE, HELP Paco 12/29/09 10:09am
Re: Unable to plot this... :( PLEASE, HELP yehuda ben-s... 12/30/09 02:07am
Re: Re: Unable to plot this... :( PLEASE, HELP Paco 12/31/09 00:30am
Re: Re: Re: Unable to plot this... :( PLEASE, H... yehuda ben-s... 01/11/10 11:06am
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