degrees to radians

I'm currently trying to find the sin of coordinates which are not in the form of simple degrees i.e it is in the form 123d 43m 15s. How do I write this command in terms of cos and sin? I've tried several commands but I cannot seem to get it right it's saying 'invalid statement'. How do I perform this function?

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Saneem Ahmed
Saneem Ahmed 2011-9-1

0 个投票

I dont know if there is an inbuilt function. but you can do like this. let 'd' be the degree ,'m' and 's' be the minute and second.Then you can put an equation to convert this format into decimal.
degree=d+(m/60)+(s/3600);
rad=degtorad(degree);

1 个评论

or try
degree=dmstodegree([d m s]);
rad=degtorad(degree);

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更多回答(1 个)

angleInDegMinSec = [123 43 15]
angleInDegrees = angleInDegMinSec*[1;[1;1/60]/60]
sind(angleInDegrees) % sin
cosd(angleInDegrees) % cos
with Mapping Toolbox
angleInDegMinSec = [123 43 15]
angleInDegees = dms2degrees([123 43 15])
sind(angleInDegrees) % sin
cosd(angleInDegrees) % cos
radians
angleInDegMinSec = [123 43 15]
angleInRadians = angleInDegMinSec*[1;[1;1/60]/60]/180*pi
cos(angleInRadians)
sin(angleInRadians)
or with Mapping Toolbox
angleInRadians = degtorad(dms2degrees(angleInDegMinSec))
cos(angleInRadians)
sin(angleInRadians)

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