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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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Task/Runge-Kutta-method/PureBasic/runge-kutta-method.basic Normal file
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EnableExplicit
Define.i i
Define.d y=1.0, k1=0.0, k2=0.0, k3=0.0, k4=0.0, t=0.0
If OpenConsole()
For i=0 To 100
t=i/10
If Not i%10
PrintN("y("+RSet(StrF(t,0),2," ")+") ="+RSet(StrF(y,4),9," ")+#TAB$+"Error ="+RSet(StrF(Pow(Pow(t,2)+4,2)/16-y,10),14," "))
EndIf
k1=t*Sqr(y)
k2=(t+0.05)*Sqr(y+0.05*k1)
k3=(t+0.05)*Sqr(y+0.05*k2)
k4=(t+0.10)*Sqr(y+0.10*k3)
y+0.1*(k1+2*(k2+k3)+k4)/6
Next
Print("Press return to exit...") : Input()
EndIf
End