GIF89a,ڋ޼HK\(jkFo #sܱUћ~hx}8$J+}3O%ޭ]NF ;04J5Vc-XE3H@+!Jg jWҖN8:tgKt|Th(ZJ 3@R"5.ȁ)fא$VXr3'~ )q&Bnэ n0n*~ 9ɔ+[9! MathType001K p=xsinq-ycosq, f=q-p/2;