Fix docstrings format

Author: MatteoCati

src/sage/combinat/matrices/hadamard_matrix.py

@@ -70,7 +70,7 @@
 
 
 def normalise_hadamard(H):
-    """
+    r"""
     Return the normalised Hadamard matrix corresponding to ``H``.
 
     The normalised Hadamard matrix corresponding to a Hadamard matrix `H` is a
@@ -588,7 +588,7 @@ def alternate(seq1, seq2):
     return T1, T2, T3, T4
 
 def four_symbol_delta_code_smallcases(n, existence=False):
-    """
+    r"""
     Return the 4-symobl delta code of length n if available.
     
     The 4-symbol delta codes are constructed using :func:`construction_four_symbol_delta_code_I`
@@ -1349,7 +1349,7 @@ def hadamard_matrix(n,existence=False, check=True):
 
 
 def hadamard_matrix_www(url_file, comments=False):
-    """
+    r"""
     Pull file from Sloane's database and return the corresponding Hadamard
     matrix as a Sage matrix.
 

src/sage/combinat/t_sequences.py

@@ -164,7 +164,7 @@ def is_symmetric(seq, verbose=False):
 
 
 def is_T_sequences_set(sequences, verbose=False):
-    """
+    r"""
     Check if a family of sequences is composed of T-sequences.
 
     Given 4 (-1, 0, +1) sequences, they will be T-sequences if
@@ -296,7 +296,7 @@ def turyn_sequences_smallcases(l, existence=False):
     return list(map(Sequence, db[l]))
 
 def T_sequences_construction_I(turyn_sequences, check=True):
-    """
+    r"""
     Construct T-sequences of length `2l-1` from turyn sequences of length `l`.
 
     Given Turyn sequences `X, U, Y, V`, the T-sequences are constructed as described in
@@ -365,7 +365,7 @@ def zero_seq(n):
     return res
 
 def T_sequences_construction_II(turyn_sequences, check=True):
-    """
+    r"""
     Construct T-sequences of length `4l-1` from turyn sequences of length `l`.
 
     Given Turyn sequences `X, U, Y, V`, the T-sequences are constructed as described in