YLL討論網

#ed_op#P#ed_cl#∫上S 下零 * P(X小等於S) * (S 減 X) * C #ed_op#/P#ed_cl##ed_op#P#ed_cl# + ∫上無窮大 下S * P(X大等於S) * (X 減 S) * R  +  S/2 * H #ed_op#/P#ed_cl##ed_op#P#ed_cl##ed_op#SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 新細明體; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-TW; mso-bidi-language: AR-SA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'"#ed_cl#用常態的pdf去代。#ed_op#/SPAN#ed_cl##ed_op#/P#ed_cl##ed_op#P#ed_cl##ed_op#SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 新細明體; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-TW; mso-bidi-language: AR-SA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'"#ed_cl#也就是#ed_op#/SPAN#ed_cl##ed_op#/P#ed_cl##ed_op#SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 新細明體; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-TW; mso-bidi-language: AR-SA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'"#ed_cl##ed_op#P#ed_cl#∫上S 下零 * 常pdf * (S 減 X) * C + ∫上無窮大 下S * 常pdf  * (X 減 S) * R     + S/2*H #ed_op#/P#ed_cl##ed_op#P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"#ed_cl##ed_op#SPAN style="FONT-FAMILY: 新細明體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"#ed_cl#不能對無窮最平方。而#ed_op#/SPAN#ed_cl##ed_op#SPAN style="FONT-FAMILY: 新細明體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"#ed_cl#常態不用積分。積分後再微分，就是原來的函數???#ed_op#/SPAN#ed_cl##ed_op#/P#ed_cl##ed_op#P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"#ed_cl##ed_op#SPAN style="FONT-FAMILY: 新細明體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"#ed_cl#所以就用#ed_op#/SPAN#ed_cl##ed_op#SPAN lang=EN-US#ed_cl##ed_op#FONT face="Times New Roman"#ed_cl#1#ed_op#/FONT#ed_cl##ed_op#/SPAN#ed_cl##ed_op#SPAN style="FONT-FAMILY: 新細明體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"#ed_cl#減#ed_op#/SPAN#ed_cl##ed_op#FONT face="Times New Roman"#ed_cl# #ed_op#/FONT#ed_cl##ed_op#SPAN style="FONT-FAMILY: 新細明體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"#ed_cl#零至#ed_op#/SPAN#ed_cl##ed_op#SPAN lang=EN-US#ed_cl##ed_op#FONT face="Times New Roman"#ed_cl#S。#ed_op#/FONT#ed_cl##ed_op#/SPAN#ed_cl##ed_op#/P#ed_cl##ed_op#P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"#ed_cl##ed_op#SPAN lang=EN-US#ed_cl##ed_op#FONT face="Times New Roman"#ed_cl#也就是...#ed_op#/FONT#ed_cl##ed_op#/SPAN#ed_cl##ed_op#/P#ed_cl##ed_op#SPAN lang=EN-US#ed_cl##ed_op#P#ed_cl#∫上S 下零 * 常pdf * (S 減 X) * C + (1 減∫上S 下零 * 常pdf )* (X 減 S) * R     + S/2*H #ed_op#/P#ed_cl##ed_op#P#ed_cl#變成....(先提出(S 減 X) * C 和 (X 減 S) * R)因為他們不可分離。可以這樣做嗎#ed_op#/P#ed_cl##ed_op#/SPAN#ed_cl##ed_op#SPAN lang=EN-US#ed_cl##ed_op#FONT face="Times New Roman"#ed_cl##ed_op#P#ed_cl#(S 減 X) * C *∫上S 下零 * 常pdf  +  (X 減 S) * R * (1 減∫上S 下零 * 常pdf )    + S/2*H #ed_op#/P#ed_cl##ed_op#P#ed_cl#然後呢??望著這各式子哭了很多天...#ed_op#/P#ed_cl##ed_op#/FONT#ed_cl##ed_op#/SPAN#ed_cl##ed_op#P#ed_cl# #ed_op#/P#ed_cl##ed_op#/SPAN#ed_cl##ed_op#DIV#ed_cl##ed_op#/DIV#ed_cl#