File:Figure 4. Multiplication tables for the C2v point group, showing how the 1 × 1 matrix representations multiply together in the same way that the symmetry operations do.png - Wikimedia Commons
File:Figure 4. Multiplication tables for the C2v point group, showing how the 1 × 1 matrix representations multiply together in the same way that the symmetry operations do.png - Wikimedia Commons
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