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Someone changed the criterion from
F
(
σ
22
−
σ
33
)
2
+
G
(
σ
33
−
σ
11
)
2
+
H
(
σ
11
−
σ
22
)
2
+
2
L
σ
23
2
+
2
M
σ
31
2
+
2
N
σ
12
2
=
1
{\displaystyle F(\sigma _{22}-\sigma _{33})^{2}+G(\sigma _{33}-\sigma _{11})^{2}+H(\sigma _{11}-\sigma _{22})^{2}+2L\sigma _{23}^{2}+2M\sigma _{31}^{2}+2N\sigma _{12}^{2}=1}
to
F
(
σ
22
−
σ
33
)
2
+
G
(
σ
33
−
σ
11
)
2
+
H
(
σ
11
−
σ
22
)
2
+
2
L
σ
23
2
+
2
M
σ
31
2
+
2
N
σ
12
2
=
2
σ
y
2
.
{\displaystyle F(\sigma _{22}-\sigma _{33})^{2}+G(\sigma _{33}-\sigma _{11})^{2}+H(\sigma _{11}-\sigma _{22})^{2}+2L\sigma _{23}^{2}+2M\sigma _{31}^{2}+2N\sigma _{12}^{2}=2\sigma _{y}^{2}~.}
without making corresponding changes to the expressions for F, G, H, I, J, K. I'm reverting back the change. Bbanerje (talk ) 03:38, 13 February 2009 (UTC) [ reply ]
— Preceding unsigned comment added by 194.114.62.74 (talk ) 12:58, 29 November 2013 (UTC) [ reply ]
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