Merge pull request numpy#27734 from AdrienCorenflos/main

Fix documentation for the chi-square distribution
abhishek-iitmadras · Nov 11, 2024 · fd4f467 · fd4f467
2 parents 20d051a + b9aaad5
commit fd4f467
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diff --git a/numpy/random/_generator.pyx b/numpy/random/_generator.pyx
@@ -1676,7 +1676,7 @@ cdef class Generator:
         The variable obtained by summing the squares of `df` independent,
         standard normally distributed random variables:
 
-        .. math:: Q = \\sum_{i=0}^{\\mathtt{df}} X^2_i
+        .. math:: Q = \\sum_{i=1}^{\\mathtt{df}} X^2_i
 
         is chi-square distributed, denoted
 

diff --git a/numpy/random/mtrand.pyx b/numpy/random/mtrand.pyx
@@ -1969,7 +1969,7 @@ cdef class RandomState:
         The variable obtained by summing the squares of `df` independent,
         standard normally distributed random variables:
 
-        .. math:: Q = \\sum_{i=0}^{\\mathtt{df}} X^2_i
+        .. math:: Q = \\sum_{i=1}^{\\mathtt{df}} X^2_i
 
         is chi-square distributed, denoted