Compilare: user.cpp:9:15: warning: left operand of comma operator has no effect [-Wunused-value] matrice P={(1,0,0),(0,1,0),(0,0,1)}; ^ user.cpp:9:17: warning: right operand of comma operator has no effect [-Wunused-value] matrice P={(1,0,0),(0,1,0),(0,0,1)}; ^ user.cpp:9:23: warning: left operand of comma operator has no effect [-Wunused-value] matrice P={(1,0,0),(0,1,0),(0,0,1)}; ^ user.cpp:9:25: warning: right operand of comma operator has no effect [-Wunused-value] matrice P={(1,0,0),(0,1,0),(0,0,1)}; ^ user.cpp:9:31: warning: left operand of comma operator has no effect [-Wunused-value] matrice P={(1,0,0),(0,1,0),(0,0,1)}; ^ user.cpp:9:33: warning: right operand of comma operator has no effect [-Wunused-value] matrice P={(1,0,0),(0,1,0),(0,0,1)}; ^ user.cpp:10:15: warning: left operand of comma operator has no effect [-Wunused-value] matrice Q={(1,1,1),(1,0,0),(0,1,0)}; ^ user.cpp:10:17: warning: right operand of comma operator has no effect [-Wunused-value] matrice Q={(1,1,1),(1,0,0),(0,1,0)}; ^ user.cpp:10:23: warning: left operand of comma operator has no effect [-Wunused-value] matrice Q={(1,1,1),(1,0,0),(0,1,0)}; ^ user.cpp:10:25: warning: right operand of comma operator has no effect [-Wunused-value] matrice Q={(1,1,1),(1,0,0),(0,1,0)}; ^ user.cpp:10:31: warning: left operand of comma operator has no effect [-Wunused-value] matrice Q={(1,1,1),(1,0,0),(0,1,0)}; ^ user.cpp:10:33: warning: right operand of comma operator has no effect [-Wunused-value] matrice Q={(1,1,1),(1,0,0),(0,1,0)}; ^