HPHP48-E-@,*oBTransformes de LAPLACE (t) 1 (t) U1 p at Ua p32 e3-at1 U 1 p+a 4-Ut 1-e U 1 p(1+p) sint U p321+w32 cost U p p321+32 U w40 1 Ue3-m0t1sin(401(1-m321)t) (1-m321) U 1 U m<1 1+ 2mUpU + Up3U2 40 1w32 3 0 1-U e3U-mw0t1sin[401(1-m321)t+ ] avec cos =m (1-m32) U 1 p(1+ 2mUpU+ Up3U21) 40 132 3 0 4-UtU -Ut U 1 U(e 411-e 421) 411-42 U 1 (1+411p)(1+421p) 4-UtU -Ut 1-U 1 U(411e411-421e421) 411-42 U 1 p(1+411p)(1+421p) 4-Ut U1U U t3Un-11 e avec n1 3n1(n-1)! U 1 (1+p)3n U t3Un-1 1 U1U (n-1)! p3n+1 M