Natural phenomenon
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Physics, Dynamics, Hydro-Dynamics, Electro-magneticsetc. #60 azfoucault0408.htm Foucault Pendulum xn1=v*sin(a*theta)*cos(b*theta); yn1=-v*sin(a*theta)*sin(b*theta); #61 azkeiatu.htm Movement under baroclinic condition du/dt=fv dv/dt=-fu+grav #65 azstewart.htm Stewart Vortex:[d2x/dt2+4*pie*2sinx=C] x0=0,x0'=0.1x4*pie x0=4*pie...split line (1/2)*y*y-A*A*cos(x)=c #66 azcatenary.htm Catenary y=(a/2)*(exp(x/a)+exp(-x/a)) #67 azlotkavorterra.htm Lotka Vorterra dx/dt=a*x-c*x*y dy/dt=-b*y+c*x*y #68 azvanderpol.htm Van der pol d2y/dt2 - myu(1-y2)(dy/dt)+y=0 dx/dt=y to reduce differential dimension #69 azjattractor.htm Japanese Attractor (d2x/dt2)+k(dx/dt)+x3=Bcos(theta) dx/dt=y to reduce differential dimension #70 azduffing.htm Duffing equation d2x/dt2 +k(dx/dt)+x+x3=Bcos(theta) dx/dt=y to reduce differential dimension #71 azlobe.htm MainLobe & SubLobe y=sinx/x
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