Documentation

This is machine translation

Translated by Microsoft
Mouse over text to see original. Click the button below to return to the English verison of the page.

acsc

Inverse cosecant in radians

Syntax

Description

example

Y = acsc(X) returns the Inverse Cosecant (csc-1) of the elements of X. The acsc function operates element-wise on arrays. For real elements of X in intervals [-Inf,-1] and [1,Inf], acsc returns real values in the interval [-pi/2,pi/2]. For real values of X in the interval [-1,1] and for complex values of X, acsc returns complex values. All angles are in radians.

Examples

collapse all

acsc(3)
ans =

    0.3398

Find the inverse cosecant of the elements of vector x. The acsc function acts on x element-wise.

x = [0.5i 1+3i -2.2+i];
Y = acsc(x)
Y =

   0.0000 - 1.4436i   0.0959 - 0.2970i  -0.3795 - 0.1833i

Plot the inverse cosecant function over the intervals $-10\le x <-1$ and $1 < x \le 10$.

x1 = -10:0.01:-1.01;
x2 = 1.01:0.01:10;
plot(x1,acsc(x1),'b')
hold on
plot(x2,acsc(x2),'b')
grid on

Input Arguments

collapse all

Numeric input, specified as a number, vector, matrix, or multidimensional array.

Data Types: single | double
Complex Number Support: Yes

More About

collapse all

Inverse Cosecant

The inverse cosecant is defined as

csc1(z)=sin1(1z).

Tall Array Support

This function fully supports tall arrays. For more information, see Tall Arrays.

See Also

| |

Introduced before R2006a

Was this topic helpful?