Use of deg2rad and rad2deg functions in MATLAB

Catalog

grammar

explain

Example

A right angle in radians

Surface distance

pi In degrees

Spherical distance

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        deg2rad The function converts angles from degrees to radians .

        rad2deg The function converts the units of angles from radians to degrees .

grammar

R = deg2rad(D)
D = rad2deg(R)

explain

         about D Each element of ,R = deg2rad(D) Convert the units of angles from degrees to radians .

        D = rad2deg(R) take R The angular unit of each element in is converted from radians to degrees .

Example

A right angle in radians

take 90 Degrees are converted to radians .

R = deg2rad(90)
R = 1.5708

Surface distance

Specify the spherical distance between Munich and Bangalore and the average radius of the earth in degrees （ In kilometers ）. Calculate the distance between Munich and Bangalore （ Measure along the surface of the earth , In kilometers ）.

D = 64.7;
radEarth = 6371;
R = deg2rad(D);
dist = radEarth*R


dist = 7.1943e+03

pi In degrees

take pi Convert to degrees .

D = rad2deg(pi)
D = 180

Spherical distance

         Specify the average radius of the earth and the distance from Munich to Bangalore measured along the earth's surface （ In kilometers ）. Calculate the spherical distance between Munich and Bangalore in degrees .

dist = 7194;
radEarth = 6371;
R = dist/radEarth;
D = rad2deg(R)


D = 64.6972

Input parameter description

D - Angle in degrees

         Angle in degrees , Specify as scalar 、 vector 、 Matrix or multidimensional array . If D Contains plural elements , be deg2rad The real part and the imaginary part will be converted respectively .

data type ： single | double
Plural support ： yes

R - Angle in radians

         Angle in radians , Specify as scalar 、 vector 、 Matrix or multidimensional array . If R Contains plural elements , be rad2deg The real part and the imaginary part will be converted respectively .

data type ： single | double
Plural support ： yes

Output parameter description

R - Angle in radians

         Angle in radians , In scalar 、 vector 、 Returns... As a matrix or multidimensional array .R The size and D identical .

D - Angle in degrees

         Angle in degrees , In scalar 、 vector 、 Returns... As a matrix or multidimensional array .D The size and R Same size for .