diff --git a/lib/node_modules/@stdlib/math/base/special/negafibonacci/README.md b/lib/node_modules/@stdlib/math/base/special/negafibonacci/README.md
index aa26d77d0a6..a4c70ce42de 100644
--- a/lib/node_modules/@stdlib/math/base/special/negafibonacci/README.md
+++ b/lib/node_modules/@stdlib/math/base/special/negafibonacci/README.md
@@ -160,6 +160,94 @@ for ( i = 0; i > -79; i-- ) {
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+* * *
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+## C APIs
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+### Usage
+
+```c
+#include "stdlib/math/base/special/negafibonacci.h"
+```
+
+#### stdlib_base_negafibonacci( n )
+
+Computes the nth [negaFibonacci number][fibonacci-number].
+
+```c
+double out = stdlib_base_negafibonacci( 0 );
+// returns 0
+
+out = stdlib_base_fibonacci( -1 );
+// returns 1
+```
+
+The function accepts the following arguments:
+
+- **n**: `[in] int32_t` input value.
+
+```c
+double stdlib_base_negafibonacci( const int32_t n );
+```
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+### Examples
+
+```c
+#include "stdlib/math/base/special/negafibonacci.h"
+#include
+#include
+
+int main( void ) {
+ int32_t i;
+ double v;
+
+ for ( i = 0; i > -79; i-- ) {
+ v = stdlib_base_negafibonacci( i );
+ printf( "negafibonacci(%d) = %lf\n", i, v );
+ }
+}
+```
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