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# csc

Cosecant of input angle in radians

## Description

example

Y = csc(X) returns the cosecant of the elements of X. The csc function operates element-wise on arrays. The function accepts both real and complex inputs. For real values of X in the interval [-Inf, Inf], csc returns real values in the interval [-Inf ,-1] and [1,Inf]. For complex values of X, csc returns complex values. All angles are in radians.

## Examples

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### Plot Cosecant Function

Plot the cosecant function over the domain and as shown.

x1 = -pi+0.01:0.01:-0.01;
x2 = 0.01:0.01:pi-0.01;
plot(x1,csc(x1),x2,csc(x2)), grid on

### Cosecant of Vector of Complex Angles

Calculate the cosecant of the complex angles in vector x.

x = [-i pi+i*pi/2 -1+i*4];
y = csc(x)
y =

0.0000 + 0.8509i   0.0000 + 0.4345i  -0.0308 - 0.0198i

## Input Arguments

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### X — Input angle in radiansscalar value | vector | matrix | N-D array

Input angle in radians, specified as a real-valued or complex-valued scalar, vector, matrix or N-D array. The csc operation is element-wise when X is non-scalar.

Data Types: single | double
Complex Number Support: Yes

## Output Arguments

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### Y — Cosecant of input anglescalar value | vector | matrix | N-D array

Cosecant of input angle, returned as a real-valued or complex-valued scalar, vector, matrix or N-D array.

## More About

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### Cosecant Function

The cosecant of an angle, α, defined with reference to a right angled triangle is

The cosecant of a complex angle, α, is

## See Also

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