xieguigang 5a26643d5a update file headers		2019-07-17 22:01:31 +08:00
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Arctan.vb	update file headers	2019-07-17 22:01:31 +08:00
Trigonometric.vb	update file headers	2019-07-17 22:01:31 +08:00
Trigonometric2.vb	update file headers	2019-07-17 22:01:31 +08:00