# Documentation/Calc Functions/PI

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PI

Matematisk

## Resume:

Returnerer den tilnærmede værdi af den matematiske konstant π, afrundet til 14 decimalpladser.

PI()

## Returnerer:

3.14159265358979, som er den tilnærmede værdi af π i radianer, afrundet til 14 decimalpladser.

Ingen

## Yderligere oplysninger:

• * π er et irrationelt tal, som kan defineres som forholdet mellem cirklens omkreds og dens diameter.
• Hvis vinklen i grader multipliceres med PI()/180, findes dens korresponderende værdi i radianer.
• A common use of π is in converting angles between radians and degrees.
• Multiply the radians by 180/π (approximately 57.295779513) to convert to degrees.
• Multiply the degrees by π/180 (approximately 0.01745329252) to convert to radians.
• For more background information about π, visit Wikipedia's Pi page.

## Eksempler:

Formel Beskrivelse Returns
=PI() Here the function returns the value of π to 14 decimal places. 3,14159265358979
=4*4*PI() Here the formula calculates the area in cm2 of a circle of radius 4 cm. The area of a circle is given by $\displaystyle{ \pi\times (radius)^{2} }$. 50,2654824574367

PI