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1 REM "G-2-2" 4*j6~
2 CLEAR : LPRINT "** "; ,F&TSzH[@v
3 LPRINT "弹性地基梁计算程序(G-2-2)"; nRP|Qt7>
4 LPRINT " **" O)0}y F$0
5 OPEN "I",#1,"G-2-2.DAT" & XS2q0-x
40 INPUT #1, R,N,LM,L,E0,E,U,B DC&3=Nd
42 INPUT #1, NH: DIM X(NH),H(NH) R?%J
43 FOR I1=1 TO NH: INPUT #1, X(I1),H(I1): NEXT I1 pQQN8Y~^Y
45 DIM Z(R,4),AK(N+2),Y(N),D(N+2),B1(N+2) h=:*cqp4
47 DIM F((N+2)*(N+3)/2),X2(N*(N+1)/2) Qs38VlR_m
50 FOR I=1 TO R: FOR J=1 TO 4: INPUT #1, Z(I,J): NEXT J: NEXT I :htz]
55 INPUT #1, RL: IF RL=0 THEN 65 {P '_s ]B)
60 DIM PL(RL),AL(RL): FOR I=1 TO RL: INPUT #1, PL(I),AL(I): NEXT I bc+~g>o
65 INPUT #1, RR: IF RR=0 THEN 75 5y
9( <}z
70 DIM PR(RR),AR(RR): FOR I=1 TO RR: INPUT #1, PR(I),AR(I): NEXT I 0 _!')+
75 INPUT #1, U0 A* 1-2
76 INPUT "需要打印原始数据吗 (Y/N)";G$ ]l T8Z-h@
80 IF G$="N" OR G$="n" THEN 152 HDmjt+3&n
85 LPRINT "原始数据:" {6_M$"e.
90 LPRINT "地基的压缩模量 E0=";E0;"(KN/m?)" {}sF ?wZf
95 LPRINT "梁的弹性模量 E=";E;"(KN/m?)" 8R3x74fL
100 LPRINT "梁的泊松比 U=";U; "梁宽 B=";B;"(m)" K;:_UJ>t
105 IF NH=1 THEN 113 pUGFQ." \
107 LPRINT : LPRINT TAB(2);"X(m)";TAB(11);"梁高H(m)" gdP Pk=LD
108 X(0)=0 : FOR I=1 TO NH: LPRINT TAB(1);X(I-1);"-";X(I);TAB(14);H(I) F&tU^( 7<
110 NEXT I: LPRINT : GOTO 115 [uJfmr EH
113 LPRINT "梁高 H=";H;"(m)" D d: T FZo
115 LPRINT TAB(1);"梁长L=";L;"(m)" 6MewQ{h i
116 LPRINT TAB(1);"分段数N=";N;TAB(13);"荷载个数R=";R 4tQ~Z6Jn;
120 LPRINT TAB(1);"问题类型(空间/平面/文克勒尔(1/2/3))LM=";LM fGeDygV^`
122 LPRINT "梁上荷载要素:" J$aE:g6'
125 LPRINT TAB(2);"Z(I,1)";TAB(11);"Z(I,2)";TAB(20);"Z(I,3)";TAB(29);"Z(I,4)" JJIlR{WY_
127 FOR I=1 TO R: LPRINT TAB(1);Z(I,1);TAB(10);Z(I,2);TAB(19);Z(I,3);TAB(28);Z(I,4) S G5 GJCkc
129 NEXT I: LPRINT -<g&U*/E
130 IF RL=0 THEN 135 Q9i&]V[`
131 LPRINT "边荷载要素:" fX
^h O+f
132 LPRINT TAB(2);"左PL(I)";TAB(11);"AL(I)" q ocN:Of1
133 FOR I=1 TO RL: LPRINT TAB(1);PL(I);TAB(10);AL(I):NEXT I: LPRINT .Y w
135 IF RR=0 THEN 140 1Q5:Vo^B#
136 LPRINT TAB(2);"右PR(I)";TAB(11);"AR(I)" }9Th `
138 FOR I=1 TO RR: LPRINT TAB(1);PR(I);TAB(10);AR(I):NEXT I: LPRINT d4#CZv[g/
140 LPRINT "U0=";U0;"(地基泊松比,文氏问题为梁下可压缩层厚度) (D\7EH\9,]
145 LPRINT "- - - - - - - - -": u-8b,$@Z>'
152 IF LM<>2 THEN 165 &dH[lB
154 INPUT "按平面应力/平面应变计算 (L/B)";A$ d8)ps,
156 IF A$="L" OR A$="l" THEN LPRINT "按平面应力计算":GOTO 165 :.k1="H~@
158 IF A$="B" OR A$="b" THEN LPRINT "按平面应变计算":GOTO 160 p`dH4y]D
159 GOTO 154 { V8yJ{.G
160 E=E/(1-U^2):U=U/(1-U):E0=E0/(1-U0^2):U0=U0/(1-U0) `u<\
4&W
165 C=L/N: FOR K=1 TO N 3/aK#TjK
170 AK(K)=(K-.5)*C:S=0 -Kas9\VWEw
175 FOR I=1 TO R:T=Z(I,4): ON T GOTO 180,185 t2L }
180 P1=Z(I,1):B2=Z(I,2): GOSUB 1740:S=S-P1*S1: GOTO 350 |S0w>VH>
185 P1=Z(I,1)*(Z(I,3)-Z(I,2)):L1=(Z(I,3)+Z(I,2))/2 ~CtLSyB
190 I1=1: IF AK(K)>Z(I,2) THEN 205 QLs9W& PG
192 M1=L1-X(I1-1):M3=AK(K)-X(I1-1):JK=E*B*H(I1)^3/12 \
oY/h T _
195 IF AK(K)>X(I1) THEN 200 0XcH
197 M2=L1-AK(K):S=S-P1*(2*M1*M3+M2*M3)*M3/6/JK: GOTO 350 ~wtK(U
200 M2=L1-X(I1):M4=AK(K)-X(I1):S=S-P1*(2*M1*M3+2*M2*M4+M1*M4+M2*M3)*(M1-M2)/6/JK (6y[,lYH
202 I1=I1+1: GOTO 192 9\QeH'A
205 IF AK(K)>Z(I,3) THEN 295 Z[ NO`!<
210 IF X(I1)>Z(I,2) THEN 225 wZ(H[be
212 M1=L1-X(I1-1):M2=L1-X(I1):M3=AK(K)-X(I1-1):M4=AK(K)-X(I1):JK=E*B*H(I1)^3/12 ;S&PLgZ
215 S=S-P1*(2*M1*M3+2*M2*M4+M1*M4+M2*M3)*(M1-M2)/6/JK r<%ua6@
220 I1=I1+1: GOTO 210 ~pZ<VH;h
225 IF X(I1-1)>=Z(I,2) THEN 265 H^VNw1.
230 M1=L1-X(I1-1):M2=L1-Z(I,2):M3=AK(K)-X(I1-1):M4=AK(K)-Z(I,2) _/S qw
231 JK=E*B*H(I1)^3/12 $dxk;V
235 S=S-P1*(2*M1*M3+2*M2*M4+M1*M4+M2*M3)*(M1-M2)/6/JK xj ?#]GR
240 IF X(I1)<=AK(K) THEN 250 |41NRGgY
245 A1=Z(I,2):A2=AK(K): GOSUB 1900:S=S-Z(I,1)*S2/JK: GOTO 350 p#\JKx
250 A1=Z(I,2):A2=X(I1): GOSUB 1900:S=S-Z(I,1)*S2/JK $wr B5m?
255 IF X(I1)=AK(K) THEN 350 |)Q#U$ m
260 I1=I1+1 KQf=t0Z=Ce
265 JK=E*B*H(I1)^3/12
6 #J>b[Q
270 IF X(I1)<=AK(K) THEN 280 8 vp*U
275 A1=X(I1-1):A2=AK(K): GOSUB 1900:S=S-Z(I,1)*S2/JK: GOTO 350 d@ 0p<at>~
280 A1=X(I1-1):A2=X(I1): GOSUB 1900:S=S-Z(I,1)*S2/JK |w{}h6 a
285 IF X(I1)=AK(K) THEN 350 L:.z
FW,
290 I1=I1+1: GOTO 265 2bs={p$}a
295 IF X(I1)>Z(I,2) THEN 315 Bf21u 9
300 M1=L1-X(I1-1):M2=L1-X(I1):M3=AK(K)-X(I1-1):M4=AK(K)-X(I1):JK=E*B*H(I1)^3/12 9wTN *y
305 S=S-P1*(2*M1*M3+2*M2*M4+M1*M4+M2*M3)*(M1-M2)/6/JK 3R}O3#lj,
310 I1=I1+1: GOTO 295 jk Q%b.a
315 IF X(I1-1)>=Z(I,2) THEN 337 F @%`(/^TA
320 M1=L1-X(I1-1):M2=L1-Z(I,2):M3=AK(K)-X(I1-1):M4=AK(K)-Z(I,2) G! u+~{g
321 JK=E*B*H(I1)^3/12 Q !91 uNL
323 S=S-P1*(2*M1*M3+2*M2*M4+M1*M4+M2*M3)*(M1-M2)/6/JK P&>!B,f
325 IF X(I1)<=Z(I,3) THEN 330 J1s~w`,
327 A1=Z(I,2):A2=Z(I,3): GOSUB 1900:S=S-Z(I,1)*S2/JK: GOTO 350 q&DM*!Jq
330 A1=Z(I,2):A2=X(I1): GOSUB 1900:S=S-Z(I,1)*S2/JK EbfE/_I
332 IF X(I1)=Z(I,3) THEN 350 6YHQ/#'G~
335 I1=I1+1 s~z~9#G(6
337 JK=E*B*H(I1)^3/12: IF X(I1)>Z(I,3) THEN 348 5 O't-'
340 A1=X(I1-1):A2=X(I1): GOSUB 1900:S=S-Z(I,1)*S2/JK }&*wJ]j`L
342 IF X(I1)=Z(I,3) THEN 350 $fzO:br5WJ
345 I1=I1+1: GOTO 337 *(,zPn,
347 S=S-AK(K)^2*Z(I,1)/(2*E*JK) rexNsKRK_
348 A1=X(I1-1):A2=Z(I,3): GOSUB 1900:S=S-Z(I,1)*S2/JK bwC~
350 NEXT I [%uj+?}6O
351 IF LM=3 THEN 355
&H4Y`xV^=
352 IF RL<>0 THEN 540 <M
y+!3\A
354 IF RR<>0 THEN 580 l.@v@T(/
355 S=S+SL+SR =O1py_m
360 D(K)=-S:Y(K)=S /e :kBjysJ
370 NEXT K 8 t)?$j$
380 S=0:Q=0 |]Eli%mNe
390 FOR I=1 TO R @TQzF-%#7
400 T=Z(I,4) nrF5^eZ#
410 ON T GOTO 420,430,450 18HmS>Qo
420 S=S+Z(I,1):Q=Q+Z(I,1)*Z(I,2): GOTO 460 IjPCaH.:t
430 S=S+Z(I,1)*(Z(I,3)-Z(I,2)) A2 r\=for
440 Q=Q+Z(I,1)*(Z(I,3)-Z(I,2))*(Z(I,2)+(Z(I,3)-Z(I,2))/2): GOTO 460 xg^Z. q)d
450 Q=Q+Z(I,1) s3/iG37 K
460 NEXT I %W(/W9B$/F
470 D(N+1)=-S:D(N+2)=-Q nF )b4`Nd
480 FOR K=1 TO N -MK9IO]i
485 FOR I=1 TO K M+L8~BD@
490 IF I>K THEN 530 ee}HQ.}Ja
495 B2=AK(I): GOSUB 1740 S"@/F-
81
500 F(K*(K-1)/2+I)=S1 ? PI2X. 6
510 X2(K*(K-1)/2+I)=F(K*(K-1)/2+I) @^2?97i
c
520 NEXT I Irc(5rD7
530 NEXT K: GOTO 645 O x),jc[/
540 T=LM: ON T GOTO 545,560,570 ~pC\"LU`
545 SL=0: FOR I=1 TO RL:X=AL(I)+AK(K): GOSUB 1800 A6?!BB=]
550 SL=SL+PL(I)*S0*(1-U0^2)/ 3.141592654 /E0/C: NEXT I n9 %&HDl4
555 GOTO 570 tl=H9w&@
560 SL=0:ST=2* LOG (100*L/C)+2+ LOG (2) b2tUJ2p
562 FOR I=1 TO RL:X=AL(I)+AK(K): GOSUB 1850 {!L25
565 S0=ST+S0:SL=SL+PL(I)*S0/ 3.141592654 /E0/B: NEXT I ppP0W ` p
570 GOTO 354 oSl@EI
580 T=LM: ON T GOTO 585,600,610 yrF"`/zv6|
585 SR=0: FOR I=1 TO RR:X=AR(I)+L-AK(K): GOSUB 1800 svaclkT=
590 SR=SR+PR(I)*S0*(1-U0^2)/ 3.141592654 /E0/C: NEXT I G%HuB5:u
595 GOTO 610 *y0=sG1+D
600 SR=0:ST=2* LOG (100*L/C)+2+ LOG (2) ^H(,^cVN
602 FOR I=1 TO RR:X=AR(I)+L-AK(K): GOSUB 1850 m]?C @ina
605 S0=ST+S0:SR=SR+PR(I)*S0/ 3.141592654 /E0/B: NEXT I joRrsxFU
610 GOTO 355 .eHOG]H
645 T=LM H{BP7!t[V
650 ON T GOTO 660,730,820 = pCO1<wR
660 Q=(1-U0^2)/( 3.141592654 *E0*C) ]aMeMhe-
665 FOR K=1 TO N +_T`tmQ
670 IF K-1<1 THEN 700 sQXj?5!
675 FOR I=1 TO K-1 lz [s
680 X=AK(K)-AK(I): GOSUB 1800 S ;8gX1Uf
685 S=S0 *U mWcFoF
690 F(K*(K-1)/2+I)=F(K*(K-1)/2+I)+S*Q W]CsKN,K
695 NEXT I zR! p-7_w
700 S= SQR (C^2/B^2+1):S=B* LOG (C/B+S)/C+ LOG (1+S) xXRlQ|84
705 F(K*(K+1)/2)=F(K*(K+1)/2)+2*C*( LOG (B/C)+S)*Q/B jU9\BYUg
710 NEXT K ng{ "W|
720 GOTO 860 -cONC9 =
730 Q=1/( 3.141593 *E0*B) \C}_l+nY
740 FOR K=1 TO N BN~gk~t_
745 IF K-1<1 THEN 800 mm:g9j
750 FOR I=1 TO K-1 s=H| ^v
760 X=AK(K)-AK(I): GOSUB 1850 ;ztt*py
770 S=S0 8#{DBWU
780 F(K*(K-1)/2+I)=F(K*(K-1)/2+I)+S*Q JW}O`H9
790 NEXT I WAUgbImc{
800 NEXT K @}<b42
810 GOTO 860 Xl %ax!/
820 Q=U0/(E0*B*C) S]x\Asj;w
830 FOR K=1 TO N @2;/-,4O
840 F(K*(K+1)/2)=F(K*(K+1)/2)+Q `3e>JIl"0
850 NEXT K fP KF U
860 FOR I=1 TO N -z~;f<+I`
870 F((N+1)*N/2+I)=-1 bzWWW^kNL
880 F((N+2)*(N+1)/2+I)=-AK(I) fEB&)mM
890 NEXT I 7C>5XyyJ
900 F((N+1)*(N+2)/2)=0 "g%=FH3e
910 F((N+1)*(N+4)/2)=0 L)z`
920 F((N+2)*(N+3)/2)=0 &cSZ?0 R
940 N1=N+2 u85 dG7
980 FOR I=1 TO N+2 RYyM;<9F
990 B1(I)=D(I) cuoZ:Wh
1000 NEXT I h]jy):9L
1010 GOSUB 1520 6ec#3~ Y]
1020 DIM QK(N),MK(N) a;h.I}*]
1030 FOR K=1 TO N 6Bf aB:
1040 QK(K)=0:MK(K)=0 V#, jUH|
1050 FOR I=1 TO R mUdj2vB$+'
1060 T=Z(I,4) ccY! OSae
1070 ON T GOTO 1080,1100,1180 *Dc B?8%
1080 IF AK(K)>=Z(I,2) THEN 1090 8W2oGL6
1085 GOTO 1200 rizWaw5E!8
1090 MK(K)=MK(K)-(AK(K)-Z(I,2))*Z(I,1):QK(K)=QK(K)-Z(I,1): GOTO 1200 P#l "`C
/
1100 IF AK(K)>Z(I,2) THEN 1120 3JFX~"rV9I
1110 GOTO 1200 (3Dz'X
1120 IF AK(K)<Z(I,3) THEN 1160 XCd[<\l
1130 QK(K)=QK(K)-Z(I,1)*(Z(I,3)-Z(I,2)) o()No_.8H
1140 MK(K)=MK(K)-Z(I,1)*(Z(I,3)-Z(I,2))*(AK(K)-(Z(I,2)+Z(I,3))/2) m#,AD,s
1150 GOTO 1200 Fl}{"eCF8
1160 QK(K)=QK(K)-Z(I,1)*(AK(K)-Z(I,2)) \|YIuzlO4
1170 MK(K)=MK(K)-Z(I,1)*(AK(K)-Z(I,2))^2/2: GOTO 1200 <} Hs@`jS
1180 IF AK(K)>Z(I,2) THEN MK(K)=MK(K)+Z(I,1) h0aK}` /a
1200 NEXT I O>3f*Cc
1205 NEXT K 0}3Xry,{
1210 FOR K=1 TO N pGdFeEkB/
1220 S=0:Q=0 0a}a
1230 FOR I=1 TO N "qdEu KI
1240 IF I>K THEN Y(K)=X2(I*(I-1)/2+K)*B1(I)+Y(K): GOTO 1260 [v Tk*#Cl4
1250 Y(K)=X2(K*(K-1)/2+I)*B1(I)+Y(K) '/'dg5bfV
1260 NEXT I ~wFiq)v(
1265 Y(K)=B1(N+1)+AK(K)*B1(N+2)-Y(K) };;k5z I%
1267 IF K-1<1 THEN 1300 }pJLK\
1270 FOR I=1 TO K-1 aCF=Og
1280 S=S+B1(I):Q=Q+B1(I)*(AK(K)-AK(I)) asZ(Hz%
1290 NEXT I g2%fla7r
1300 QK(K)=QK(K)+S+.5*B1(K) l3:2f-H
1310 MK(K)=MK(K)+Q+C*B1(K)/8 >] <4t06D
1315 NEXT K skP'- ^F~
1320 FOR K=1 TO N UJiy] y
1330 D(K)=B1(K)/C tyU'[LF?
1340 NEXT K i@L_[d^|j`
1350 LPRINT TAB(2);"X(m)";TAB(9);"反力D(kN/m?)";TAB(23);"弯距M(kN-m)";TAB(36);"剪力Q(kN)";TAB(49);"变位Y(cm)" ?p'D gL{
1360 FOR I=1 TO N sKwUY{u\M
1370 LPRINT TAB(1); INT (100*(I-.5)*C+.5)/100;TAB(8); INT (100*D(I)+.5)/100; F nc MIzp
1372 LPRINT TAB(23); INT (100*MK(I)+.5)/100;TAB(36); INT (100*QK(I)+.5)/100; [ :(hqi!
1373 LPRINT TAB(49); INT (100*(Y(I)*100)+.5)/100 G @+R!IG
1375 NEXT I 928uG o5
1378 GOTO 1710 ZZ324UuATX
1380 LPRINT " THE END": l {mC|8X
1420 END {fI"p;|
1500 G1=2*X/C+1 EdTR] }8
1520 DIM C1(N1-1) H(gETRh
1525 FOR I=1 TO N1 =k ]2 Ad
1527 IF I-1<1 THEN 1567 x~u"KU2B
1530 I1=I*(I-1)/2 XI\P#"
1535 FOR J=1 TO I-1 1W'0h$5^"
1540 S=0:J1=J*(J-1)/2:J2=J*(J+1)/2 6qd?&.=r
1543 IF J-1<1 THEN 1560 @h,3"2W{Ev
1545 FOR K=1 TO J-1 =mYwO=:D
1550 S=S+C1(K)*F(J1+K) ]S 3l' "
1555 NEXT K Y=ksrs>w
1560 C1(J)=F(I1+J)-S:F(I1+J)=C1(J)/F(J2) IKVFbTX:y
1565 NEXT J `{1~]?-&
1567 S=0:I2=I*(I+1)/2 O^~Z-; FA
1568 IF I-1<1 THEN 1585 @q"HZO[
1570 FOR K=1 TO I-1 +`f3_Xd
1575 S=S+C1(K)*F(I1+K) y #{v\h
Cz
1580 NEXT K <lgX=wx L
1585 F(I2)=F(I2)-S _$P1N^}Z s
1590 NEXT I
vLs*}+f
1595 FOR I=1 TO N1 0^83:C
^{
1600 I1=I*(I-1)/2:S=0 *6aIDFNl
1603 IF I-1<1 THEN 1625 \h@3 dJ4
1605 FOR K=1 TO I-1 \P;2s<6i\
1610 S=S+F(I1+K)*B1(K) O?$]/d
1615 NEXT K jdX *
1620 B1(I)=B1(I)-S ?Q~o<%U7
1625 NEXT I )?;+<,
1630 FOR I=1 TO N1 IAi|4,y_L
1635 I2=I*(I+1)/2:B1(I)=B1(I)/F(I2) V [Wo9Y\
1640 NEXT I )dfwYS*[n
1645 FOR I=N1 TO 1 STEP -1 ;R([w4[~
1647 IF I+1>N1 THEN 1668 >zo_ }A!
1650 S=0 3_ ZlZ_Tq
1655 FOR K=I+1 TO N1 rlQ=rNrG&E
1660 S=S+F(K*(K-1)/2+I)*B1(K) /liZ|K3A
1663 NEXT K )Ah 7
1667 B1(I)=B1(I)-S:D(I)=B1(I)/C ugzrG0=lx
1668 NEXT I g `( 3r
1700 RETURN uq v S
1710 GOTO 1380 c<OR mg6
1740 S1=0:I1=1: IF AK(K)>=B2 THEN 1770 )?{jD
1745 M1=B2-X(I1-1):M3=AK(K)-X(I1-1):JK=E*B*H(I1)^3/12 lS G]{
1750 IF X(I1)>AK(K) THEN 1765 `hf`lq^
1755 M2=B2-X(I1):M4=AK(K)-X(I1):S1=S1+(2*M1*M3+2*M2*M4+M1*M4+M2*M3)*(M1-M2)/6/JK a];1)zVA6
1758 IF X(I1)=AK(K) THEN 1790 6E{(_i
1760 I1=I1+1: GOTO 1745 Ku?1QDhrF*
1765 M2=B2-AK(K):S1=S1+(2*M1*M3+M2*M3)*(M1-M2)/6/JK 2&zklXuo:
1768 GOTO 1790 [=TD)o>W(p
1770 M1=B2-X(I1-1):M3=AK(K)-X(I1-1):JK=E*B*H(I1)^3/12 (9Of,2]&E
1772 IF X(I1)>B2 THEN 1785 )l H` a
1775 M2=B2-X(I1):M4=AK(K)-X(I1):S1=S1+(2*M1*M3+2*M2*M4+M1*M4+M2*M3)*(M1-M2)/6/JK uQYenCNXS
1780 IF X(I1)=B2 THEN 1790 D@)L?AB1f
1782 I1=I1+1: GOTO 1770 ?U V|m
1785 M4=AK(K)-B2:S1=S1+(2*M1*M3+M1*M4)*(M3-M4)/6/JK 57Bxx__S4`
1790 RETURN 4x-K0
1800 G1=2*X/C+1:G2=2*X/C-1 JqV}>"WMV
1805 G3=2*X/B:G4=G3-C/B:G3=G3+C/B yVe<+Z\7
1810 S0=2* LOG (B/C)- LOG (G1*G2)-2*X/C* LOG (G1/G2) im@QJ :
1815 G2= SQR (G3^2+1):G1= SQR (G4^2+1) >0JC u^9
1820 S0=S0+B* LOG ((G3+G2)/(G4+G1))/C 97 k}{tG
1825 S0=S0+2*X* LOG ((1+G2)/(1+G1))/C ;R]~9Aan
1830 S0=(S0+ LOG ((1+G2)*(1+G1)))/B*C qH(H csgD
1835 RETURN k`B S{,=
1850 G1=2*X/C+1 dC>(UDC
1855 S0=2*X/C-1:S0=-2*X* LOG (G1/S0)/C- LOG (G1*S0) %J8uVD. 2
1860 RETURN ]oLyvG
1900 S2=AK(K)*Z(I,3)^2*(A2-A1)/2-Z(I,3)*(2*AK(K)+Z(I,3))*(A2^2-A1^2)/4 Ip |=NQL>
1905 S2=S2+(AK(K)+2*Z(I,3))*(A2^3-A1^3)/6-(A2^4-A1^4)/8 a"D'QqtH
1910 RETURN 8`z
