Secant of angle in radians
Y = sec(X)
Plot the secant over the domain and .
x1 = -pi/2+0.01:0.01:pi/2-0.01; x2 = pi/2+0.01:0.01:(3*pi/2)-0.01; plot(x1,sec(x1),x2,sec(x2)), grid on
Calculate the secant of the complex angles in vector
x = [-i pi+i*pi/2 -1+i*4]; y = sec(x)
y = 1×3 complex 0.6481 + 0.0000i -0.3985 + 0.0000i 0.0198 - 0.0308i
X— Input angle in radians
Input angle in radians, specified as a scalar, vector, matrix, or multidimensional array.
Complex Number Support: Yes
Y— Secant of input angle
Secant of input angle, returned as real-valued or complex-valued scalar, vector, matrix or multidimensional array.
The secant of an angle, α, defined with reference to a right angled triangle is
The secant of a complex argument, α, is
In floating-point arithmetic,
sec is a bounded function. That
sec does not return values of
-Inf at points of divergence that are multiples of
pi, but a large magnitude number instead. This stems from the
inaccuracy of the floating-point representation of π.
This function fully supports tall arrays. For more information, see Tall Arrays.
This function fully supports GPU arrays. For more information, see Run MATLAB Functions on a GPU (Parallel Computing Toolbox).
This function fully supports distributed arrays. For more information, see Run MATLAB Functions with Distributed Arrays (Parallel Computing Toolbox).