Documentation/Calc Functions/ARCTAN

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    Funktionsnavn:

    ARCTAN

    Kategori:

    Matematisk

    Resume:

    Returnerer den inverse trigonometriske tangens (arcus-tangens) af et tal. Denne funktion beregner principalværdien.

    Syntaks:

    ARCTAN(Number)

    Returnerer:

    Denne funktion returnerer den inverse trigonometriske tangens af tallet, der er den vinkel (i radianer), hvis tangens er tallet. Den returnerede vinkel ligger mellem -PI/2 og PI/2, dvs. [-π/2,+π/2].

    Argumenter:

    Tallet er det reelle tal eller en reference til en celle, der indeholder tallet, hvis inverse trigonometriske tangens-værdi skal beregnes.

    • If Number is non-numeric, then ARCTAN reports a #VÆRDI! error.

    Yderligere oplysninger:

    • Til at returnere vinklen i grader, bruger du funktionen GRADER.
    • Alternativt multiplicerer 180/PI() for at konvertere resultatet fra radianer til grader.

    GIFen herunder illustrerer funktionen ARCTAN.

    Funktionen ARCTAN

    Eksempler:

    Formula Description Returns
    ARCTAN(−1) Inverse trigonometric tangent of -1. −0,785398163397448 (-π/4)
    =ARCTAN(D1) where cell D1 contains the number 0.5. Inverse trigonometric tangent of 0.5. 0,463647609000806
    =GRADER(ARCTAN(0,5)) Inverse trigonometric tangent of 0.5, converted to degrees. 26,565051177078
    =ARCTAN(−0,5)*180/PI() Inverse trigonometric tangent of -0.5, converted to degrees. −26,565051177078
    =GRADER(ARCTAN(TAN(RADIANER(60))) An angle of 60° is converted to radians, its tangent is taken, then the inverse tangent of that value is calculated, and finally the result is converted back to degrees. 60

    Beslægtede LibreOffice-funktioner:

    ARCCOS

    ARCCOT

    ARCSIN

    ARCTAN2

    TAN

    ODF standard:

    Tilsvarende Excel-funktioner:

    ATAN