This page is a example of display-mathml.

Generated by Microsoft Office - pattern1

ex=1+x1!+x22!+x33!+…

Generated by Microsoft Office - pattern2

∑n=11000ancos⁡nπxL+bnsin⁡nπxL

Generated by Microsoft Office - pattern3

x=-b±b2-4ac2a+100010001-∑n5x+2sin⁡x5x2+∫-55e-iωtdt
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