Sample
element-wise cosine function, argument in degree
y = cosd(x)
a real vector/matrix.
For a vector or a matrix x of angles given in
degree, cosd(x) is the cosine of its elements. The
results are in [-1 1]. For input elements which are
equal to n*90 with n integer and
odd, the result is exactly zero.
x=[0,30 45 60 90 360]; cosd(x) |  |  |