rad2sm

Convert spherical distance from radians to statute miles

Description

sm = rad2sm(rad) converts distances from radians to statute miles, as measured along a great circle on a sphere with a radius of 3958.748 sm, the mean radius of the Earth.

sm = rad2sm(rad,radius) converts distances from radians to statute miles, as measured along a great circle on a sphere having the specified radius.

example

sm = rad2sm(rad,sphere) converts distances from radians to statute miles, as measured along a great circle on a sphere approximating an object in the Solar System.

Examples

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How long is a trip around the equator in statute miles?

sm = rad2sm(2*pi)
sm = 2.4874e+04

How about on Jupiter?

sm = rad2sm(2*pi,'jupiter')
sm = 2.7283e+05

Input Arguments

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Distance in radians, specified as a numeric array.

Data Types: single | double

Radius of sphere in units of statute miles, specified as a numeric scalar.

Sphere approximating an object in the Solar System, specified as one of the following values: 'sun', 'moon', 'mercury', 'venus', 'earth', 'mars', 'jupiter', 'saturn', 'uranus', 'neptune', or 'pluto'. The value of sphere is case-insensitive.

Output Arguments

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Distance in statute miles, returned as a numeric array.

Data Types: single | double

Introduced in R2007a