diff --git a/lib/node_modules/@stdlib/stats/base/dists/degenerate/pdf/README.md b/lib/node_modules/@stdlib/stats/base/dists/degenerate/pdf/README.md
index 3788a5468ea9..475e4ce83c76 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/degenerate/pdf/README.md
+++ b/lib/node_modules/@stdlib/stats/base/dists/degenerate/pdf/README.md
@@ -127,6 +127,102 @@ for ( i = 0; i < 100; i++ ) {
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+## C APIs
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+### Usage
+
+```c
+#include "stdlib/stats/base/dists/degenerate/pdf.h"
+```
+
+#### stdlib_base_dists_degenerate_pdf( x, mu )
+
+Evaluates the [PDF][pdf] of a [degenerate distribution][degenerate-distribution] centered at `mu`.
+
+```c
+double out = stdlib_base_dists_degenerate_pdf( 2.0, 3.0 );
+// returns 0.0
+```
+
+The function accepts the following arguments:
+
+- **x**: `[in] double` input value.
+- **mu**: `[in] double` constant value of the distribution.
+
+```c
+double stdlib_base_dists_degenerate_pdf( const double x, const double mu );
+```
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+### Examples
+
+```c
+#include "stdlib/stats/base/dists/degenerate/pdf.h"
+#include "stdlib/math/base/special/round.h"
+#include
+#include
+
+static double random_uniform( const double min, const double max ) {
+ double v = (double)rand() / ( (double)RAND_MAX + 1.0 );
+ return min + ( v * ( max - min ) );
+}
+
+int main( void ) {
+ double result;
+ double mu;
+ double x;
+ int i;
+
+ for ( i = 0; i < 10; i++ ) {
+ x = stdlib_base_round( random_uniform( 0.0, 5.0 ) );
+ mu = stdlib_base_round( random_uniform( 0.0, 5.0 ) );
+ result = stdlib_base_dists_degenerate_pdf( x, mu );
+ printf( "x: %lf, µ: %lf, f(x;µ): %lf \n", x, mu, result );
+ }
+}
+```
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