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CD ROM Paradise Collection 4
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CD ROM Paradise Collection 4 1995 Nov.iso
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sm32a.zip
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FRA.SM
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Text File
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1994-08-10
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379b
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13 lines
#expand:=on
#vy:=20
#plot2y((1-exp(-vy*y))/(1-exp(-vy)),y, y,-0.1,1,-0.1,1)
#c:=-k1*x^2-k2*x+k1*y^2+k3*y+k4
#d(d(c,x),x)+d(d(c,y),y)
c:=-exp(k2*vy-vy*y+k3*vx-k4*vx*x)/vy/vx
#c:=-k1*x^2-k2*x+k1*y^2+k3*y+k4
d(d(c,x),x)+d(d(c,y),y)+vx*d(c,x)+vy*d(c,y)
#c:=-1/vy+(1/vy^2+k1*y*2/vy+2*k2/vy)
#c:=-exp(k2*vy-vy*y)/vy
#d(d(c,y),y)+vy*d(c,y)
#dsolve(c'(y)=-vy*c(y)+k1,c(y),y)