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+
+
+# sech
+
+> Compute the [hyperbolic cosecant][hyperbolic-functions] of a double-precision floating-point number.
+
+
+
+## Usage
+
+```javascript
+var sech = require( '@stdlib/math/base/special/sech' );
+```
+
+#### sech( x )
+
+Computes the [hyperbolic cosecant][hyperbolic-functions] of a double-precision floating-point number.
+
+```javascript
+var v = sech( 0.0 );
+// returns 1.0
+
+v = sech( 2.0 );
+// returns ~0.2658
+
+v = sech( -2.0 );
+// returns ~0.2658
+
+v = sech( NaN );
+// returns NaN
+```
+
+
+
+
+
+
+
+## Examples
+
+
+
+```javascript
+var uniform = require( '@stdlib/random/array/uniform' );
+var logEachMap = require( '@stdlib/console/log-each-map' );
+var sech = require( '@stdlib/math/base/special/sech' );
+
+var opts = {
+ 'dtype': 'float64'
+};
+var x = uniform( 100, -5.0, 5.0, opts );
+
+logEachMap( 'sech(%0.4f) = %0.4f', x, sech );
+```
+
+
+
+
+
+
+
+* * *
+
+
+
+## C APIs
+
+
+
+
+
+
+
+
+
+
+
+### Usage
+
+```c
+#include "stdlib/math/base/special/sech.h"
+```
+
+#### stdlib_base_sech( x )
+
+Computes the [hyperbolic cosecant][hyperbolic-functions] of double-precision floating-point number.
+
+```c
+double out = stdlib_base_sech( 2.0 );
+// returns ~0.2658
+
+out = stdlib_base_sech( -2.0 );
+// returns ~0.2658
+```
+
+The function accepts the following arguments:
+
+- **x**: `[in] double` input value.
+
+```c
+double stdlib_base_sech( const double x );
+```
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+### Examples
+
+```c
+#include "stdlib/math/base/special/sech.h"
+#include
+
+int main( void ) {
+ const double x[] = { -4.0, -3.11, -2.22, -1.33, -0.44, 0.44, 1.33, 2.22, 3.11, 4.0 };
+
+ double v;
+ int i;
+ for ( i = 0; i < 10; i++ ) {
+ v = stdlib_base_sech( x[ i ] );
+ printf( "sech(%lf) = %lf\n", x[ i ], v );
+ }
+}
+```
+
+
+
+
+
+
+
+
+
+
+
+