Documentation

This is machine translation

Translated by Microsoft
Mouse over text to see original. Click the button below to return to the English verison of the page.

km2rad

Convert spherical distance from kilometers to radians

Syntax

rad = km2rad(km)
rad = km2rad(km,radius)
rad = km2rad(km,sphere)

Description

rad = km2rad(km) converts distances from kilometers to radians as measured along a great circle on a sphere with a radius of 6371 km, the mean radius of the Earth.

rad = km2rad(km,radius) converts distances from kilometers to radians as measured along a great circle on a sphere having the specified radius. radius must be in units of kilometers.

rad = km2rad(km,sphere)converts distances from kilometers to radians , as measured along a great circle on a sphere approximating an object in the Solar System. sphere may be one of the following values: 'sun', 'moon', 'mercury', 'venus', 'earth', 'mars', 'jupiter', 'saturn', 'uranus', 'neptune', or 'pluto', and is case-insensitive.

Examples

How many radians does 1,000 km span on the Earth and on the Moon?

rad = km2rad(1000)

rad =
    0.1570

rad = km2rad(1000,'moon')

rad =
    0.5754

Introduced in R2007a

Was this topic helpful?