mehran rajabi

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10 years, 329 days

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These are questions asked by mehran rajabi

Hi everybody:

How can I solve this equation? the type of method(numeric or ...) isn't important. tnx

A := 1.66123496405779610264482465216*10^48*x^12*exp(-(3.87000237787905620615465263885*I)*Pi/x)*exp(-(.321534474251124888739020720131*I)*Pi/x)+2.11374922567922298689120113111*10^50*x^12*exp(-(3.87000237787905620615465263885*I)*Pi/x)/(exp((.160767237125562444369510360066*I)*Pi/x))^2+7.16344924069934889468886048304*10^50*x^12*exp(-(.321534474251124888739020720131*I)*Pi/x)/(exp((1.93500118893952810307732631942*I)*Pi/x))^2+9.11474632627216348403905833199*10^52*x^12/((exp((1.93500118893952810307732631942*I)*Pi/x))^2*(exp((.160767237125562444369510360066*I)*Pi/x))^2)-3.86425849708968323906554386738*10^50*x^10*exp(-(3.87000237787905620615465263885*I)*Pi/x)*exp(-(.321534474251124888739020720131*I)*Pi/x)-9.49728635677626263805870840780*10^51*x^10*exp(-(.321534474251124888739020720131*I)*Pi/x)/(exp((1.93500118893952810307732631942*I)*Pi/x))^2-4.63662778304304619471230112279*10^52*x^10*exp(-(3.87000237787905620615465263885*I)*Pi/x)/(exp((.160767237125562444369510360066*I)*Pi/x))^2+4.83122406362728749484124839315*10^51*x^8*exp(-(3.87000237787905620615465263885*I)*Pi/x)*exp(-(.321534474251124888739020720131*I)*Pi/x)=0

EQ.mw

Hi everyone:

I want to obtain only the vertical asymptotes this function in the interval [a, b] and i used the asymptotes command but i didn't get true answer, can everybody help me? a=0.3 and b= 0.36

I attached my code. 

tnx...

Download Asymptotes.mw

Hi everybody:

How can i plot this function in maple? for x=0.2..0.4 and I is complex number(I^2=-1).

tnx.

f:=(x)->-(2.50000000000000000000000000000*(-2.424176758*10^30*x^5+5.982448001*10^29*x^3+(5.336360731*10^33*I)*exp((4.0405213687327619451756171962*I)/x)+(3.144879905*10^98*I)*exp((48.6318841588794957405477169504*I)/x)+(8.489643736*10^35*I)*exp((4.04052136873276194517561719622*I)/x)))*x^6/((1.009157478*10^101*I)*exp((48.6318841588794957405477169504*I)/x)*x^6-2.760182453*10^32*x^11-(7.651751413*10^37*I)*exp((4.0405213687327619451756171962*I)/x)*x^4+1.887831524*10^32*x^9-(8.567811466*10^36*I)*exp((4.04052136873276194517561719622*I)/x)*x^4-(1.207009672*10^100*I)*exp((48.6318841588794957405477169504*I)/x)*x^4+(6.538572988*10^29*I)*x^6+(1.246166933*10^31*I)*x^10-1.837651455*10^31*x^7+(1.504191760*10^38*I)*exp((4.04052136873276194517561719622*I)/x)*x^6+1.574891043*10^34*exp((4.0405213687327619451756171962*I)/x)*x^5-(7.612867062*10^30*I)*x^8+4.556143298*10^99*exp((48.6318841588794957405477169504*I)/x)*x^5-(2.488678360*10^105*I)*exp((52.6724055276122576857233341466*I)/x)+6.791123646*10^36*exp((4.04052136873276194517561719622*I)/x)*x^5-3.454612059*10^36*exp((4.0405213687327619451756171962*I)/x)*x^3-4.710342238*10^98*exp((48.6318841588794957405477169504*I)/x)*x^3+(3.488285966*10^35*I)*exp((4.0405213687327619451756171962*I)/x)*x^6+5.512268188*10^106*exp((52.6724055276122576857233341466*I)/x)*x)

Hi every body: 

How can I solve this equation with maple? assuming x>0

eq:=-44.51913564*sinh(sqrt(x))*x^5*sin(sqrt(x))*cos(0.6232678986e-1*x)+5.872275982*x^(11/2)*cosh(sqrt(x))*sin(sqrt(x))*cos(0.6232678986e-1*x)+5.872295982*x^(11/2)*sinh(sqrt(x))*cos(sqrt(x))*cos(0.6232678986e-1*x)-0.1e-5*x^6*sinh(sqrt(x))*sin(sqrt(x))*cos(0.6232678986e-1*x)+11465.08352*x^6*cosh(sqrt(x))*cos(sqrt(x))*cos(0.6232678986e-1*x)-0.10000e-4*x^(11/2)*sin(sqrt(x))*cos(sqrt(x))*cos(0.6232678986e-1*x)+.1246535797*cosh(sqrt(x))*x^4*cos(sqrt(x))*cos(0.6232678986e-1*x)+158.9969129*x^(9/2)*sinh(sqrt(x))*cos(sqrt(x))*cos(0.6232678986e-1*x)-94.84329962*cosh(sqrt(x))*x^5*cos(sqrt(x))*sin(0.6232678986e-1*x)-0.2e-2*x^7*sinh(sqrt(x))*sin(sqrt(x))*sin(0.6232678986e-1*x)+0.4000e-2*x^(13/2)*cosh(sqrt(x))*sin(0.6232678986e-1*x)*sinh(sqrt(x))+0.10000e-4*x^(11/2)*cosh(sqrt(x))*sinh(sqrt(x))*cos(0.6232678986e-1*x)-158.9969129*cosh(sqrt(x))*x^(9/2)*sin(sqrt(x))*cos(0.6232678986e-1*x)+38209.64552*sinh(sqrt(x))*x^6*sin(sqrt(x))*sin(0.6232678986e-1*x)-3761.932636*x^(13/2)*cosh(sqrt(x))*sin(sqrt(x))*sin(0.6232678986e-1*x)-3761.924636*x^(13/2)*sinh(sqrt(x))*cos(sqrt(x))*sin(0.6232678986e-1*x)-0.4000e-2*x^(13/2)*sin(sqrt(x))*cos(sqrt(x))*sin(0.6232678986e-1*x)-2.*10^(-7)*x^(13/2)*cosh(sqrt(x))*sin(sqrt(x))*cos(0.6232678986e-1*x)-11465.08352*x^6*cos(0.6232678986e-1*x)+.1246535797*x^4*cos(0.6232678986e-1*x)-94.84329962*x^5*sin(0.6232678986e-1*x)+0.1e-5*x^6*cosh(sqrt(x))^2*cos(0.6232678986e-1*x)-0.1e-5*x^6*cos(sqrt(x))^2*cos(0.6232678986e-1*x)+0.3e-5*cosh(sqrt(x))^2*x^6*sin(0.6232678986e-1*x)-0.2e-2*x^7*cos(sqrt(x))^2*sin(0.6232678986e-1*x)+0.2e-2*x^7*cosh(sqrt(x))^2*sin(0.6232678986e-1*x)+2.*10^(-7)*x^(13/2)*sinh(sqrt(x))*cosh(sqrt(x))*cos(0.6232678986e-1*x)+2.*10^(-7)*x^(13/2)*cos(sqrt(x))*sin(sqrt(x))*cos(0.6232678986e-1*x)-2.*10^(-7)*x^(13/2)*sinh(sqrt(x))*cos(sqrt(x))*cos(0.6232678986e-1*x)+1.159305284*10^5*cosh(sqrt(x))*x^(11/2)*sin(sqrt(x))*sin(0.6232678986e-1*x)-1.159305284*10^5*x^(11/2)*sinh(sqrt(x))*cos(sqrt(x))*sin(0.6232678986e-1*x)-8.359616334*10^6*x^7*cosh(sqrt(x))*cos(sqrt(x))*sin(0.6232678986e-1*x)+8.359616334*10^6*x^7*sin(0.6232678986e-1*x) = 0

tnx ... 

Hi every body:

I want to solve these equations with maple, can everyone help me how to solve them?

eq1 := diff(u1(x), x, x)+diff(u2(x), x)+int(2*x*s*(u1(s)-3*u2(s)), s = 0 .. 1) = 6*x^2+3*x*(1/10)+8
eq2 := diff(u1(x), x)+diff(u2(x), x, x)+int((3*(s^2+2*x))*(u1(s)-2*u2(s)), s = 0 .. 1) = 21*x+4/5
bcs := u1(0)+(D(u1))(0) = 1, u2(0)+(D(u2))(0) = 1, u1(1)+(D(u1))(1) = 10, u2(1)+(D(u2))(1) = 7

with regards...

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