asin
Inverse sine in radians
Syntax
Description
returns the
Inverse Sine
(sin-1) of the elements of Y
= asin(X
)X
in radians. The
function accepts both real and complex inputs.
For real values of
X
in the interval [-1, 1],asin(X)
returns values in the interval [-π/2, π/2].For real values of
X
outside the interval [-1, 1] and for complex values ofX
,asin(X)
returns complex values.
Examples
Inverse Sine of Value
Inverse Sine of Vector of Complex Values
Find the inverse sine of the elements of vector x
. The asin
function acts on x
element-wise.
x = [0.5i 1+3i -2.2+i]; y = asin(x)
y = 1×3 complex
0.0000 + 0.4812i 0.3076 + 1.8642i -1.1091 + 1.5480i
Plot Inverse Sine Function
Plot the inverse sine function over the intervals .
x = -1:.01:1;
plot(x,asin(x))
grid on
Input Arguments
X
— Sine of angle
scalar | vector | matrix | multidimensional array | table | timetable
Sine of angle, specified as a scalar, vector, matrix, multidimensional array, table,
or timetable. The asin
operation is element-wise when
X
is nonscalar.
Data Types: single
| double
| table
| timetable
Complex Number Support: Yes
More About
Inverse Sine
The inverse sine is defined as
Extended Capabilities
Tall Arrays
Calculate with arrays that have more rows than fit in memory.
The
asin
function fully supports tall arrays. For more information,
see Tall Arrays.
C/C++ Code Generation
Generate C and C++ code using MATLAB® Coder™.
Usage notes and limitations:
Generates an error during simulation and returns
NaN
in generated code when the input valueX
is real, but the output should be complex. To get the complex result, make the input value complex by passing incomplex(X)
.
GPU Code Generation
Generate CUDA® code for NVIDIA® GPUs using GPU Coder™.
Usage notes and limitations:
Generates an error during simulation and returns
NaN
in generated code when the input valueX
is real, but the output should be complex. To get the complex result, make the input value complex by passing incomplex(X)
.
Thread-Based Environment
Run code in the background using MATLAB® backgroundPool
or accelerate code with Parallel Computing Toolbox™ ThreadPool
.
This function fully supports thread-based environments. For more information, see Run MATLAB Functions in Thread-Based Environment.
GPU Arrays
Accelerate code by running on a graphics processing unit (GPU) using Parallel Computing Toolbox™.
The asin
function
supports GPU array input with these usage notes and limitations:
If the output of the function running on the GPU can be complex, then you must explicitly specify its input arguments as complex. For more information, see Work with Complex Numbers on a GPU (Parallel Computing Toolbox).
For more information, see Run MATLAB Functions on a GPU (Parallel Computing Toolbox).
Distributed Arrays
Partition large arrays across the combined memory of your cluster using Parallel Computing Toolbox™.
This function fully supports distributed arrays. For more information, see Run MATLAB Functions with Distributed Arrays (Parallel Computing Toolbox).
Version History
Introduced in R2006aR2023a: Perform calculations directly on tables and timetables
The asin
function can calculate on all variables within a table or
timetable without indexing to access those variables. All variables must have data types
that support the calculation. For more information, see Direct Calculations on Tables and Timetables.
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