sol=1/d1*dp+1/2*(-4*d3^2*d1*exp(5/d3*2^(1/2)*(-d3*(d2+(d2^2-4*d3*d1)^(1/2)))^(1/2))+4*d3^2*exp(-5/d3*2^(1/2)*(d3*(-d2+(d2^2-4*d3*d1)^(1/2)))... it is a really long. But it is also including y terms. I need to see the values d1 , d2 , d3 , dp in sol equation.
Function is not taking the knowing values, it is giving result symbolic
2 views (last 30 days)
Show older comments
Hello everyone.I have a problem with symbolic presentation. As u see below, i found values of d1 , d2 , d3, d4 by running codes. .d1=(1/125)*Pi^4 ,d2=-(2/5)*Pi^2 , d3=15 , dv=0.00005200000000.But when i want to calculate of d1*Y+d2*D2Y+d3*D4Y-dp=0 (d1, d2, d3, dv is known) , it is not taking the values of d1,d2,d3,dv. It is giving me symbolic solution. I need something depends on just y. Because my Y function depends on y. Where i am doing, may u please help me. Thanks for helping.
a =10; b =10; h =0.1; E =210*10^9; v =0.3; q=100; Dp = E*h^3/(12*(1-v^2)) %%%%------- syms x X1 = 1-cos(2*pi*x/a) p=X1
dXdxx=diff(p,x,2) dXdxxxx=diff(p,x,4) d1= int(p*dXdxxxx,0,a) d2= 2*(int(p*dXdxx,0,a)) d3=int(p*p,0,a) dv = int(p*(q/Dp),0,a)
syms y
sol=dsolve('d1*Y+d2*D2Y+d3*D4Y-dp=0','Y(0)=0','DY(0)=0','Y(10)=0','DY(10)=0','y)
Answers (0)
See Also
Categories
Find more on Special Values in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!