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

2asin, asinh
Purpose Inverse sine and inverse hyperbolic sine
Syntax Y = asin(X)
Y = asinh(X)
asin, asinh
Description The asin and asinh functions operate element-wise on arrays. The functions’
domains and ranges include complex values. All angles are in radians.
Y = asin(X) returns the inverse sine (arcsine) for each element of X. For real
elements of X in the domain [ – 11 , ] , asin(X) is in the range [ – π⁄
2,
π⁄ 2]
. For
real elements of x outside the range [ – 11 , ] , asin(X) is complex.
Y = asinh(X) returns the inverse hyperbolic sine for each element of X.
Examples Graph the inverse sine function over the domain – 1 ≤ x ≤ 1, and the inverse
hyperbolic sine function over the domain – 5 ≤ x ≤ 5.
y=asin(x)
2
1.5
1
0.5
0
-0.5
-1
-1.5
x = -1:.01:1; plot(x,asin(x))
x = -5:.01:5; plot(x,asinh(x))
-2
-1 -0.8 -0.6 -0.4 -0.2 0
x
0.2 0.4 0.6 0.8 1
y=asinh(x)
2.5
2
1.5
1
0.5
0
-0.5
-1
-1.5
-2
-2.5
-5 -4 -3 -2 -1 0
x
1 2 3 4 5
2-61