xieguigang 5e79f951f5 update source file headers		2019-03-10 18:10:46 +08:00
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Arctan.vb	update source file headers	2019-03-10 18:10:46 +08:00
Trigonometric.vb	update source file headers	2019-03-10 18:10:46 +08:00
Trigonometric2.vb	update source file headers	2019-03-10 18:10:46 +08:00