Handling UTF-8 files

The word Russian (��) in Cyrillic:
Using ISO Cyrillic set: ��
Using XML Unicode entities: ��

Russian-English correspondence

��

�� J j ��

��

��

Greek-English correspondence

��Q q ��

�� J j ��

�� V v ��

Math characters

And here is one of Maxwell's equations: ��B=0