Documentation/Calc Functions/ARCTAN2

TDF LibreOffice Document Liberation Project Community Blogs Weblate Nextcloud Redmine Ask LibreOffice Donate

• Wiki Home
• Development
• Design
• QA
• Events
• Documentation
• Website
• Localization
• Accessibility
• Marketing
• Diversity
• Wiki Help

• Documentation Home
• Official Publications
• Other Resources
• FAQ
• HowTo
• Macros
• Docs Development

Calc Functions Home | List of functions | Abbreviations

Funktionsnavn:

ARCTAN2

Kategori:

Matematisk

Resume:

Returnerer vinklen (i radianer) mellem x-aksen og en linje fra nulpunktet (tallet X | tallet Y). Denne funktion beregner principalværdien.

Syntaks:

ARCTAN2(Number X; Number Y)

Returnerer:

ATAN2 returnerer vinklen (i radianer) mellem x-aksen og en linje fra nulpunktet til punktet ( tallet X | tallet Y). Vinklen returneres mellem -PI og PI, dvs. [-π,π].

If the function returns a positive angle it represents a counterclockwise angle from the x-axis, while a negative result represents a clockwise angle.

Argumenter:

Tallet X er værdien af ordinaten (x).

Tallet Y er værdien af koordinanten (y).

• Tallet X og tallet Y kan begge være 0, hvortil funktionen returnerer 0.
• If Number X and Number Y are both equal to 0, then ARCTAN2 returns the value 0.

Yderligere oplysninger:

The following illustration shows the geometry used by ARCTAN2 (φ is the angle calculated).

• * Til at returnere en vinkel i grader bruger du funktionen GRADER.
• Hvis funktionen returnerer en positiv vinkel, repræsenterer det en vinkel imod uret fra x-aksen, mens et negativt resultat repræsenterer en vinkel med uret.
• Alternatively multiply by 180/PI() to convert the result from radians to degrees.
• Beware that computer programming languages often use the opposite order of arguments for their atan2() functions.

Eksempler:

Formel	Beskrivelse	Returnerer
=ARCTAN2(−5; 9)	Here the function calculates the angle (in radians) between the x-axis and a line from the origin to the point (-5, 9).	2,07789483118723
=GRADER(ARCTAN2(12,3; 12,3))	Here the function calculates the angle (in degrees) between the x-axis and a line from the origin to the point (12.3, 12.3).	45
=ARCTAN2(D1; D2) where cells D1 and D2 both contain the value 0.	Here the function returns 0.	0
=ARCTAN2(−5; −3)*180/PI()	Here the function calculates the angle (in degrees) between the x-axis and a line from the origin to the point (-5, -3).	−149,036243467926
GRADER(ARCTAN2(−8; 5))	Here the function calculates the angle (in degrees) between the x-axis and a line from the origin to the point (-8, 5).	147,994616791916

Beslægtede LibreOffice-funktioner:

ARCCOS

ARCCOT

ARCSIN

ARCTAN

TAN

ODF standard:

Section 6.16.10, part 2

Relaterede (eller lignende) Excel-funktioner:

ATAN2