MATLAB Function Reference Volume 1: A - E - Bad Request

acot, acoth
2acot, acoth
Purpose Inverse cotangent and inverse hyperbolic cotangent
Syntax Y = acot(X)
Y = acoth(X)
Description The acot and acoth functions operate element-wise on arrays. The functions’
domains and ranges include complex values. All angles are in radians.
2-30
Y = acot(X) returns the inverse cotangent (arccotangent) for each element of X.
Y = acoth(X) returns the inverse hyperbolic cotangent for each element of X.
Examples Graph the inverse cotangent over the domains – 2π ≤ x < 0 and 0 < x ≤ 2π, and
the inverse hyperbolic cotangent over the domains
1 < x ≤ 30.
– 30 ≤ x < – 1 and
y=acot(x)
1.5
1
0.5
0
-0.5
-1
x1 = -2*pi:pi/30:-0.1; x2 = 0.1:pi/30:2*pi;
plot(x1,acot(x1),x2,acot(x2))
x1 = -30:0.1:-1.1; x2 = 1.1:0.1:30;
plot(x1,acoth(x1),x2,acoth(x2))
-1.5
-8 -6 -4 -2 0
x1 x2
2 4 6 8
y=acoth(x)
2
1.5
1
0.5
0
-0.5
-1
-1.5
-2
-30 -20 -10 0
x1,x2
10 20 30