Documentation/Calc Functions/ARCTAN

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This page is a translated version of the page Documentation/Calc Functions/ATAN and the translation is 41% complete.
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Template:Documentation/Calc Functions/Func Page Links/da

Funktionsnavn:

ARCTAN

Kategori:

Matematisk

Resume:

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

Syntaks:

ARCTAN(tal)

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 ATAN reports a #VALUE! 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
=ATAN(-1) Inverse trigonometric tangent of -1. -0.785398163397448 (-π/4)
=ATAN(D1) where cell D1 contains the number 0.5. Inverse trigonometric tangent of 0.5. 0.463647609000806
=DEGREES(ATAN(0.5)) Inverse trigonometric tangent of 0.5, converted to degrees. 26.565051177078
=ATAN(-0.5)*180/PI() Inverse trigonometric tangent of -0.5, converted to degrees. -26.565051177078
=DEGREES(ATAN(TAN(RADIANS(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:

ACOS

ACOT

ASIN

ATAN2

TAN

ODF standard:

Tilsvarende Excel-funktioner:

ARCTAN