MAINT: npymath cleanups for isnan, isinf, isinfinite, signbit, nextafter (#22684)

* make isnan, isinf, isfinite, signbit, nextafter aliases

* fixes from review

Co-authored-by: Sebastian Berg <sebastianb@nvidia.com>

1 files changed, 6 insertions, 6 deletions

diff --git a/doc/source/reference/c-api/coremath.rst b/doc/source/reference/c-api/coremath.rst
index eb0990edb..2293f0ae8 100644
--- a/doc/source/reference/c-api/coremath.rst
+++ b/doc/source/reference/c-api/coremath.rst
@@ -55,30 +55,30 @@ Floating point classification
 
 .. c:macro:: npy_isnan(x)
 
-    This is a macro, and is equivalent to C99 isnan: works for single, double
+    This is an alias for C99 isnan: works for single, double
     and extended precision, and return a non 0 value if x is a NaN.
 
 .. c:macro:: npy_isfinite(x)
 
-    This is a macro, and is equivalent to C99 isfinite: works for single,
+    This is an alias for C99 isfinite: works for single,
     double and extended precision, and return a non 0 value if x is neither a
     NaN nor an infinity.
 
 .. c:macro:: npy_isinf(x)
 
-    This is a macro, and is equivalent to C99 isinf: works for single, double
+    This is an alias for C99 isinf: works for single, double
     and extended precision, and return a non 0 value if x is infinite (positive
     and negative).
 
 .. c:macro:: npy_signbit(x)
 
-    This is a macro, and is equivalent to C99 signbit: works for single, double
+    This is an alias for C99 signbit: works for single, double
     and extended precision, and return a non 0 value if x has the signbit set
     (that is the number is negative).
 
 .. c:macro:: npy_copysign(x, y)
 
-    This is a function equivalent to C99 copysign: return x with the same sign
+    This is an alias for  C99 copysign: return x with the same sign
     as y. Works for any value, including inf and nan. Single and extended
     precisions are available with suffix f and l.
 
@@ -141,7 +141,7 @@ Those can be useful for precise floating point comparison.
 
 .. c:function:: double npy_nextafter(double x, double y)
 
-    This is a function equivalent to C99 nextafter: return next representable
+    This is an alias to C99 nextafter: return next representable
     floating point value from x in the direction of y. Single and extended
     precisions are available with suffix f and l.