I am using matlab 2013 version,does matlab works in radians or degrees and can i change from degrees to radians (or) radians to degrees in the settings?

 asin   Inverse sine, result in radians.

 sin    Sine of argument in radians.

Answer 1

[David Young]

To work in radians, use sin, cos, asin, acos etc.

To work in degrees, use sind, cosd, asind, acosd etc.

To convert from degrees to radians, multiply by pi/180.

To convert from radians to degrees, multiply by 180/pi.

Check the documentation for other functions that refer to angles, which may use degrees or radians.

[Steven Lord]

As of release R2015b the deg2rad and rad2deg functions are included in MATLAB. Prior to that they were part of Mapping Toolbox.

Answer 2

[andre sallato]

90degrees-tan^-1(.35719)