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Inverse cosecant in radians



Y = acsc(X) returns the Inverse Cosecant (csc-1) of the elements of X in radians. The function accepts both real and complex inputs.

  • For real values of X in the intervals [-∞, -1] and [1, ∞], acsc(X) returns real values in the interval [-π/2, π/2].

  • For real values of X in the interval (-1, 1) and for complex values of X, acsc(X) returns complex values.


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Find the inverse cosecant of a value.

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 = 1×3 complex

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

Plot the inverse cosecant function over the intervals -10x<-1 and 1<x10.

x1 = -10:0.01:-1.01; 
x2 = 1.01:0.01:10;
hold on
grid on

Input Arguments

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Cosecant of angle, specified as a scalar, vector, matrix, multidimensional array, table, or timetable. The acsc operation is element-wise when X is nonscalar.

Data Types: single | double | table | timetable
Complex Number Support: Yes

More About

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Inverse Cosecant

The inverse cosecant is defined as


Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using MATLAB® Coder™.

Version History

Introduced in R2006a

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See Also

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