Time complexity O(n2)
physik not simple 1/r^2
therefore, finished libraries are not suitable
+ and I do not want someone else's
I will probably correct the laws of interaction between the bodies of the system, so the possibility of further corrections should remain
Code: Select all
sub vals ()
for n=0 to Nmass
dim as single dx,dy ,a,df,dfy,dfx,xm,ym
dim as single Rglue ,Rgquadro
for m=0 to Nmass
if n<>m then
dx=x(m)-x(n):dy=y(m)-y(n)
Rgquadro=(dx*dx+dy*dy): Rglue=sqr (Rgquadro)
Select Case Rglue
Case is >140
df=9512/((Rgquadro))
Case 10 to 140
df=((-1e12 /Rgquadro)/Rgquadro/Rgquadro)+.4
Case 0 to 10
df=0 : NUM_ERROR=NUM_ERROR+1
x_ERR_m(m) =x(m):x_ERR_m(m) =y(m):
x_ERR_n(n) =x(n):x_ERR_n(n) =y(n):
n_ERR_part =n
m_ERR_part =m
End Select
df=df*mc(m)
dfy=dfy+df*(dy/Rglue):dfx=dfx+df*(dx/Rglue)
end if
next m
dfy=dfy-y(n)*Kcnt:dfx=dfx-x(n) *Kcnt rem Centering power
vy(n)=vy(n)*.99999:vx(n)=vx(n)*.99999 rem dissipation
vy(n)=vy(n)+dfy*dt:vx(n)=vx(n)+dfx*dt
y(n)=y(n)+vy(n)*dt : x(n)=x(n)+vx(n)*dt
dx=x(m)-x(n):dy=y(m)-y(n)
next n
end sub
