RosettaCodeData/Task/Golden-ratio-Convergence/PureBasic/golden-ratio-convergence.basic
2023-07-01 13:44:08 -04:00

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Text

Procedure using_Float()
Define iter.i = 0
Define.f phi0 = 1.0, phi1, diff
Repeat
phi1 = 1.0 + (1.0 / phi0)
diff = Abs(phi1 - phi0)
phi0 = phi1
iter + 1
Until (1.0e-5 > diff)
PrintN("Using type Float --")
PrintN("Result: " + FormatNumber((phi1), 10) + " after " + Str(iter) + " iterations")
PrintN("The error is approximately " + FormatNumber((phi1 - (0.5 * (1.0 + Sqr(5.0)))), 10))
EndProcedure
Procedure using_Double()
Define iter.i = 0
Define.d phi0 = 1.0, phi1, diff
Repeat
phi1 = 1.0 + (1.0 / phi0)
diff = Abs(phi1 - phi0)
phi0 = phi1
iter + 1
Until (1.0e-5 > diff)
PrintN("Using type Double --")
PrintN("Result: " + FormatNumber((phi1), 10) + " after " + Str(iter) + " iterations")
PrintN("The error is approximately " + FormatNumber((phi1 - (0.5 * (1.0 + Sqr(5.0)))), 10))
EndProcedure
OpenConsole()
using_Float()
PrintN("")
using_Double()
Input()
CloseConsole()