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V " @ A d e n o g9Qh{j03fwDn H g9Sje SSlS2l!2n|jShj2egjD2gGl 2f2 u e en x y r r e e e en o w P n o n C jj}S92nl! h C } H P H Sjf{d2e2S9 rn f u w d y uu e n x w P r e e e 2nv}9j2dg2ej2'}h 9C {kj2egj2gEl C 22h p d o wn r 3f}C 2n8gijQf g9S2l!2nrn2S2ng2e{C l}0x d y P u u e u y d u u n wrp H SQ|jg2eSfd g9hhg922nQl 2h H }o eu ey d n PQ RC j2eiifj2e|hDj0' jg fffw2ijf g9S2lsrn ifpg d en x w w e e u y d y o 2nEll d e C d C w e u y n Pjfj H f22hje f H Q ijh gUS2l28S H "C gtjj2eg9j2ng} C flfQrS92nrndgt!pg2'lh e e e o u d o o uu fwg2eSfd gUfhj2l9#2u22hE2n0p Q P H C ey d y p Q P H C Sv2Svl0Bfw2|{#u g2eSfd g9qo2Sv2f0x n x e ey n rwrige 6j2eSfd g92W n ey eu dy ey eu hn 2dgUhfjd2ege h2'9rfg g2eSfrdj9Q2n 2dgUhfjd2ege hd f 2jg u e $ -1.5 -2 -2 -0.5 0.5 1.5 -1 0 1 2 -1.5 -1 -0.5 0 0.5 Stable x Stable Stable Unstable 1 1.5 2 -1.5 -0.5 0.5 1.5 -2 -2 -1 0 1 2 -1.5 Stable Unstable -1 Unstable -0.5 0 x 0.5 Unstable 1 1.5 2 & 1 E E i ty e e E e fQf{ 0!rwl E FH E FH W P l I i I TH tigr}j E FH |{#u en x Sl I I H 2rfg2ejlm2nlhtgfehg!2n|fjS0Arw A!j2e d dr d r e n x n n ty e e d e u d dr d r 0ige 2nfgrij8r f82nQj0|jn 0Smlhtgfehg2n e d y d e S2njG2rf6j2ejl8#SAjfeluj'Sn rw 8j2ejlEllu h22h{9l992n6j2rft}p djtje S lgU2ySt2tffrG2 h0 d u nu e d o e d w u nu e d {9l92nj#t lh E l d d 2rfh ll I I H g2e{lQ2g2ei'2nlQj2e2ng}n d e o e u n x w u nu e e u ij0jU!l992njiji9 Dl E I E I H 6 E I j2en S d e 2n|r g2ejljl I I H 3 fwG7%FV63 2n8lQ22ff2jtj2 ) "% jmj2n{9u Q H 2ngt9j2eje llhltmj2n8WQh92u290'gt222n e e u e d nu n x w d u d d d e 2fj2e9h2Sg9hhDlf2hhSfg2eh9UU2nfQ2 gr32S W 2f} P X Y H i H W P i H 2ni{e llhlt#g2ejo e w e y d e n en t hd9f2lijEf}llhltU9g2eQ{0fg22ll e n o e d o f rndl'n2At|2f!fllhltsg2ejomfje hDk2f} w er n e t ghyjdhg9gy2e #' f{}n 'j62f2n0fge Qj u e o d e e fwje 2fllh|g9Q3 2gg tn u e 5)( -3 -3 -2 -1 0 1 2 3 -2 -1 0 1 2 3 -2 x 2 1 1 3 1 1 1 1 ! 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