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MiWi84 |
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Verfasst am: 24.06.2010, 17:24
Titel: Sinus von pi nicht null?
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Ich habe mal eine Kurze Frage:
Warum ist in MATLAB der Sinus von pi nicht 0?
Danke schonmal im Voraus...
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Zenker |
Gast
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Verfasst am: 24.06.2010, 17:48
Titel:
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Numerische ungenauigkeit...
10^-16 ist ja fast null
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MiWi84 |
Themenstarter
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Verfasst am: 24.06.2010, 17:49
Titel:
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Danke für die schnelle Antwort.
Was ist wenn ich aber die berechnete null für weitere Berechnungen benötige?
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Andreas Goser |
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Verfasst am: 24.06.2010, 20:51
Titel:
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Schlau programmieren. Es ist halt die Frage was berechnet werden muss. Natürlich nicht IF(SIN(0)==0) oder ähnliche Sachen nutzen.
Andreas
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Phate |
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Verfasst am: 24.06.2010, 21:10
Titel:
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HI,
Du kannst dir zum Beispeil eine Toleranz ausdenken die für deine Berechnung ausreichend gut ist und diese dann bei der suche nach Nullen berücksichtigen las Anregung.
Grüße
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