Page 307 - 1300 Math Formulas

CHAPTER 10. DIFFERENTIAL EQUATIONS

1169. bñ~Åí=~åÇ=kçåÉñ~Åí=bèì~íáçåë=
qÜÉ=Éèì~íáçå==
( j ) ó I ñ Çñ + ( k ) ó I ñ Çó = M==
áë=Å~ääÉÇ=Éñ~Åí=áÑ==
∂ j = ∂ k I==
ó ∂ ñ ∂

~åÇ=åçåÉñ~Åí=çíÜÉêïáëÉK=
=
qÜÉ=ÖÉåÉê~ä=ëçäìíáçå=áë==
∫ ( j ) ó I ñ Çñ + ∫ k ( óIñ )Çó = ` K==

=
1170. o~Çáç~ÅíáîÉ=aÉÅ~ó=
Çó = − âó I==
Çí
ïÜÉêÉ= () íó =áë=íÜÉ=~ãçìåí=çÑ=ê~Çáç~ÅíáîÉ=ÉäÉãÉåí=~í=íáãÉ=íI=â=
áë=íÜÉ=ê~íÉ=çÑ=ÇÉÅ~óK==
=
qÜÉ=ëçäìíáçå=áë==
ó () óí = M É − âí I=ïÜÉêÉ= ó = ó ( ) M =áë=íÜÉ=áåáíá~ä=~ãçìåíK=
M
=
1171. kÉïíçå∞ë=i~ï=çÑ=`ççäáåÖ=
Çq = â ( − p I==
)q −
Çí
ïÜÉêÉ= () íq =áë=íÜÉ=íÉãéÉê~íìêÉ=çÑ=~å=çÄàÉÅí=~í=íáãÉ=íI=p=áë=íÜÉ=
íÉãéÉê~íìêÉ=çÑ=íÜÉ=ëìêêçìåÇáåÖ=ÉåîáêçåãÉåíI=â=áë=~=éçëá-
íáîÉ=Åçåëí~åíK==
=
qÜÉ=ëçäìíáçå=áë=
q ( ) pí = + ( M p )q − É − âí I==
ïÜÉêÉ= q = q () M =áë=íÜÉ=áåáíá~ä=íÉãéÉê~íìêÉ=çÑ=íÜÉ=çÄàÉÅí=~í=
M
M
íáãÉ=í = K==
=
=

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