自己顶 Z|dng6ck
1 REM "G-2-2" _9Y7. 5
2 CLEAR : LPRINT "** "; F!qt#Sw!\
3 LPRINT "弹性地基梁计算程序(G-2-2)"; !m tX*;b(e
4 LPRINT " **" c!}f \ ]D
5 OPEN "I",#1,"G-2-2.DAT" O)WduhlGQ
40 INPUT #1, R,N,LM,L,E0,E,U,B w`F4.e
42 INPUT #1, NH: DIM X(NH),H(NH) kpt 0spp
43 FOR I1=1 TO NH: INPUT #1, X(I1),H(I1): NEXT I1 $ h< l
45 DIM Z(R,4),AK(N+2),Y(N),D(N+2),B1(N+2) L?p,Sy<RI
47 DIM F((N+2)*(N+3)/2),X2(N*(N+1)/2)
C#x9RW
50 FOR I=1 TO R: FOR J=1 TO 4: INPUT #1, Z(I,J): NEXT J: NEXT I mtu`m6Xix
55 INPUT #1, RL: IF RL=0 THEN 65 f3Cjj]RFv
60 DIM PL(RL),AL(RL): FOR I=1 TO RL: INPUT #1, PL(I),AL(I): NEXT I 4?F7% ^vr
65 INPUT #1, RR: IF RR=0 THEN 75 VLfE3i4Vwl
70 DIM PR(RR),AR(RR): FOR I=1 TO RR: INPUT #1, PR(I),AR(I): NEXT I %b(n on*
75 INPUT #1, U0 <j$n7#qk
76 INPUT "需要打印原始数据吗 (Y/N)";G$ 9t^Q_ [hG
80 IF G$="N" OR G$="n" THEN 152 =#ls<Zo:
85 LPRINT "原始数据:" }Qo:;&"3
90 LPRINT "地基的压缩模量 E0=";E0;"(KN/m?)" I Lq"/S.
95 LPRINT "梁的弹性模量 E=";E;"(KN/m?)" pCm |t!,
100 LPRINT "梁的泊松比 U=";U; "梁宽 B=";B;"(m)" ~}F$1;t0
105 IF NH=1 THEN 113 ]>\!} \R<
107 LPRINT : LPRINT TAB(2);"X(m)";TAB(11);"梁高H(m)" JYU0&nZl4
108 X(0)=0 : FOR I=1 TO NH: LPRINT TAB(1);X(I-1);"-";X(I);TAB(14);H(I) [MVG\6Up(
110 NEXT I: LPRINT : GOTO 115 ,c_NXC^X?
113 LPRINT "梁高 H=";H;"(m)" wa}\bNKQk
115 LPRINT TAB(1);"梁长L=";L;"(m)" Uq}-<q
116 LPRINT TAB(1);"分段数N=";N;TAB(13);"荷载个数R=";R om'DaG`A
120 LPRINT TAB(1);"问题类型(空间/平面/文克勒尔(1/2/3))LM=";LM X1{U''$
K
122 LPRINT "梁上荷载要素:" 2t7Hu)V
125 LPRINT TAB(2);"Z(I,1)";TAB(11);"Z(I,2)";TAB(20);"Z(I,3)";TAB(29);"Z(I,4)" cWG?`6xU&
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) "lJ [H=\
129 NEXT I: LPRINT 2V 9vS
130 IF RL=0 THEN 135 )./'`Mx?
131 LPRINT "边荷载要素:" .}zpvr8YP
132 LPRINT TAB(2);"左PL(I)";TAB(11);"AL(I)" @ I$;
133 FOR I=1 TO RL: LPRINT TAB(1);PL(I);TAB(10);AL(I):NEXT I: LPRINT M,nLPHg K
135 IF RR=0 THEN 140 v5!G/TZ1
136 LPRINT TAB(2);"右PR(I)";TAB(11);"AR(I)" X6lR?6u%|
138 FOR I=1 TO RR: LPRINT TAB(1);PR(I);TAB(10);AR(I):NEXT I: LPRINT KZ}F1Mr
140 LPRINT "U0=";U0;"(地基泊松比,文氏问题为梁下可压缩层厚度) p 6FPdt)
145 LPRINT "- - - - - - - - -": fb||q-E
152 IF LM<>2 THEN 165 m?=9j~F *
154 INPUT "按平面应力/平面应变计算 (L/B)";A$ %T :7I[f
156 IF A$="L" OR A$="l" THEN LPRINT "按平面应力计算":GOTO 165 B)cVbjTn
158 IF A$="B" OR A$="b" THEN LPRINT "按平面应变计算":GOTO 160 _LUTIqlvi
159 GOTO 154 V=|X=:fuih
160 E=E/(1-U^2):U=U/(1-U):E0=E0/(1-U0^2):U0=U0/(1-U0) msiftP.
165 C=L/N: FOR K=1 TO N 0/Wo":R:
170 AK(K)=(K-.5)*C:S=0 k4ijWo{:0
175 FOR I=1 TO R:T=Z(I,4): ON T GOTO 180,185 LV X01ox$
180 P1=Z(I,1):B2=Z(I,2): GOSUB 1740:S=S-P1*S1: GOTO 350 :6Oh ?y@
185 P1=Z(I,1)*(Z(I,3)-Z(I,2)):L1=(Z(I,3)+Z(I,2))/2 p .^#mN
190 I1=1: IF AK(K)>Z(I,2) THEN 205 " O,TL *$
192 M1=L1-X(I1-1):M3=AK(K)-X(I1-1):JK=E*B*H(I1)^3/12 . |g67PH=
195 IF AK(K)>X(I1) THEN 200 t/9,JG
197 M2=L1-AK(K):S=S-P1*(2*M1*M3+M2*M3)*M3/6/JK: GOTO 350 A(>kp=~
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 y
2v69nu~q
202 I1=I1+1: GOTO 192 09 >lx$
205 IF AK(K)>Z(I,3) THEN 295 ~Q)137u]P
210 IF X(I1)>Z(I,2) THEN 225 rM?ox
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 qf2;yRc&
215 S=S-P1*(2*M1*M3+2*M2*M4+M1*M4+M2*M3)*(M1-M2)/6/JK s=xJcLA
220 I1=I1+1: GOTO 210 EO[U ezuU
225 IF X(I1-1)>=Z(I,2) THEN 265 4 9zOhG
|
230 M1=L1-X(I1-1):M2=L1-Z(I,2):M3=AK(K)-X(I1-1):M4=AK(K)-Z(I,2) MGzuQrl{H
231 JK=E*B*H(I1)^3/12 nQW`X=Ku
235 S=S-P1*(2*M1*M3+2*M2*M4+M1*M4+M2*M3)*(M1-M2)/6/JK HX]pcX^K
240 IF X(I1)<=AK(K) THEN 250 MVpk/S%W
245 A1=Z(I,2):A2=AK(K): GOSUB 1900:S=S-Z(I,1)*S2/JK: GOTO 350 umD[4aP~;
250 A1=Z(I,2):A2=X(I1): GOSUB 1900:S=S-Z(I,1)*S2/JK b#<@&0KE
255 IF X(I1)=AK(K) THEN 350 !\%0O`b^4
260 I1=I1+1 E5}wR(i,4
265 JK=E*B*H(I1)^3/12 8=h$6=1S
270 IF X(I1)<=AK(K) THEN 280 l;gj] ,*
275 A1=X(I1-1):A2=AK(K): GOSUB 1900:S=S-Z(I,1)*S2/JK: GOTO 350 | p1 pa4%}
280 A1=X(I1-1):A2=X(I1): GOSUB 1900:S=S-Z(I,1)*S2/JK &\ 0V*5tI
285 IF X(I1)=AK(K) THEN 350 Ni4*V3VB
290 I1=I1+1: GOTO 265 [rt+KA
295 IF X(I1)>Z(I,2) THEN 315 JZ
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 M)oJ06`K
305 S=S-P1*(2*M1*M3+2*M2*M4+M1*M4+M2*M3)*(M1-M2)/6/JK D3+ UV+&R/
310 I1=I1+1: GOTO 295 %7*Y@k-)o
315 IF X(I1-1)>=Z(I,2) THEN 337 xRx8E;Q@h?
320 M1=L1-X(I1-1):M2=L1-Z(I,2):M3=AK(K)-X(I1-1):M4=AK(K)-Z(I,2) $2j?Z.yEG
321 JK=E*B*H(I1)^3/12 EL[N%M3
323 S=S-P1*(2*M1*M3+2*M2*M4+M1*M4+M2*M3)*(M1-M2)/6/JK yIdM2# `u
325 IF X(I1)<=Z(I,3) THEN 330 .g6DK jy>
327 A1=Z(I,2):A2=Z(I,3): GOSUB 1900:S=S-Z(I,1)*S2/JK: GOTO 350 Ltt+BUJc
330 A1=Z(I,2):A2=X(I1): GOSUB 1900:S=S-Z(I,1)*S2/JK M~1 n#
332 IF X(I1)=Z(I,3) THEN 350 e~, /Z\i
335 I1=I1+1 DlXthRM
337 JK=E*B*H(I1)^3/12: IF X(I1)>Z(I,3) THEN 348 6s"Erq5q
340 A1=X(I1-1):A2=X(I1): GOSUB 1900:S=S-Z(I,1)*S2/JK (YJ]}J^
342 IF X(I1)=Z(I,3) THEN 350 z<rYh96uA
345 I1=I1+1: GOTO 337 j 4B|ktf
347 S=S-AK(K)^2*Z(I,1)/(2*E*JK) 4vk^=
348 A1=X(I1-1):A2=Z(I,3): GOSUB 1900:S=S-Z(I,1)*S2/JK ^YLpZoo
350 NEXT I cPgz?,hE
351 IF LM=3 THEN 355 }m6j6uAR6)
352 IF RL<>0 THEN 540 0$9I.%4jAJ
354 IF RR<>0 THEN 580 '<YVDB&-d,
355 S=S+SL+SR CdN,R"V0$@
360 D(K)=-S:Y(K)=S _(<D*V[
370 NEXT K ^Q\O8f[u
380 S=0:Q=0 1li1&
390 FOR I=1 TO R "?~u*5
400 T=Z(I,4) !Y3
*\
410 ON T GOTO 420,430,450 `RG_FS"v
420 S=S+Z(I,1):Q=Q+Z(I,1)*Z(I,2): GOTO 460 & sRjs
430 S=S+Z(I,1)*(Z(I,3)-Z(I,2)) &E>zvRBQ
440 Q=Q+Z(I,1)*(Z(I,3)-Z(I,2))*(Z(I,2)+(Z(I,3)-Z(I,2))/2): GOTO 460 E'g2<k
450 Q=Q+Z(I,1) m%hUvG| i
460 NEXT I >{dj6Wo
470 D(N+1)=-S:D(N+2)=-Q q3s
+?&
480 FOR K=1 TO N %hu] =
485 FOR I=1 TO K t,2Q~ied=
490 IF I>K THEN 530 S2jO
495 B2=AK(I): GOSUB 1740 ;|e6Qc9
500 F(K*(K-1)/2+I)=S1 mf>cv2+
510 X2(K*(K-1)/2+I)=F(K*(K-1)/2+I) <2Qh5umQ
520 NEXT I >
CPJp!u
530 NEXT K: GOTO 645 +I+7@Xi Z
540 T=LM: ON T GOTO 545,560,570 A
S#D9o
545 SL=0: FOR I=1 TO RL:X=AL(I)+AK(K): GOSUB 1800 *\i<+~I@l
550 SL=SL+PL(I)*S0*(1-U0^2)/ 3.141592654 /E0/C: NEXT I aTceGyWzl
555 GOTO 570 *qLOr6
560 SL=0:ST=2* LOG (100*L/C)+2+ LOG (2) +AT!IZrB2i
562 FOR I=1 TO RL:X=AL(I)+AK(K): GOSUB 1850 ){.J `X5r
565 S0=ST+S0:SL=SL+PL(I)*S0/ 3.141592654 /E0/B: NEXT I p2UZ qq2
570 GOTO 354
IiV#V
580 T=LM: ON T GOTO 585,600,610 Gu3'<hTlxd
585 SR=0: FOR I=1 TO RR:X=AR(I)+L-AK(K): GOSUB 1800 (HUGgX"=
590 SR=SR+PR(I)*S0*(1-U0^2)/ 3.141592654 /E0/C: NEXT I ?*~Pgh >uL
595 GOTO 610 !PfI e94{`
600 SR=0:ST=2* LOG (100*L/C)+2+ LOG (2) z mxrz[
602 FOR I=1 TO RR:X=AR(I)+L-AK(K): GOSUB 1850 ir4uy
605 S0=ST+S0:SR=SR+PR(I)*S0/ 3.141592654 /E0/B: NEXT I !1H\*VM "
610 GOTO 355 n?QpVROo\
645 T=LM cO#e
AQf7
650 ON T GOTO 660,730,820
e8TJ =}\
660 Q=(1-U0^2)/( 3.141592654 *E0*C) 96.A8o
665 FOR K=1 TO N /_r g*y*
670 IF K-1<1 THEN 700 W~1MeAI
675 FOR I=1 TO K-1 J6H3X;vxQw
680 X=AK(K)-AK(I): GOSUB 1800 vh~:{akR
685 S=S0 ]c8O"4n
n
690 F(K*(K-1)/2+I)=F(K*(K-1)/2+I)+S*Q j aj."v
695 NEXT I Ti@X< C
700 S= SQR (C^2/B^2+1):S=B* LOG (C/B+S)/C+ LOG (1+S) +r+H`cT@
705 F(K*(K+1)/2)=F(K*(K+1)/2)+2*C*( LOG (B/C)+S)*Q/B ?V}AwLX}
710 NEXT K b7:B[7yK.x
720 GOTO 860 ^'|\8
730 Q=1/( 3.141593 *E0*B) G([!(8&2Y
740 FOR K=1 TO N Mp V6Vbp
745 IF K-1<1 THEN 800 kOfu7Zj
750 FOR I=1 TO K-1 (]yOd/ru/C
760 X=AK(K)-AK(I): GOSUB 1850 xCd9b:jG
770 S=S0 *1L;%u| [
780 F(K*(K-1)/2+I)=F(K*(K-1)/2+I)+S*Q % DQ.f*%
790 NEXT I Y( D@B|"'m
800 NEXT K OudD1( )W
810 GOTO 860 #]yb; L
820 Q=U0/(E0*B*C) ] g/% w3G
830 FOR K=1 TO N h%Nbx:vKk
840 F(K*(K+1)/2)=F(K*(K+1)/2)+Q a%-P^M;a2
850 NEXT K 7x%0 ^~/n
860 FOR I=1 TO N hal3J
870 F((N+1)*N/2+I)=-1 X j\SJ*
880 F((N+2)*(N+1)/2+I)=-AK(I) Eu AJ .n
890 NEXT I o'3t(dyyH
900 F((N+1)*(N+2)/2)=0 ^%v<I"<Uq5
910 F((N+1)*(N+4)/2)=0 S;"7d
920 F((N+2)*(N+3)/2)=0 ,'CDKzY
940 N1=N+2 XMM@EN
980 FOR I=1 TO N+2 =~&Fq$$
990 B1(I)=D(I) jF'az l T
1000 NEXT I TT429
1010 GOSUB 1520 {GS7J
1020 DIM QK(N),MK(N) &S.zc@rN
1030 FOR K=1 TO N " Iy @PR?>
1040 QK(K)=0:MK(K)=0 eKL)jzC :
1050 FOR I=1 TO R FshQ OFW
1060 T=Z(I,4) =%:mZ@x'
1070 ON T GOTO 1080,1100,1180 z 90=,wd
1080 IF AK(K)>=Z(I,2) THEN 1090 }@pe `AF^
1085 GOTO 1200 Q-[^!RAK?
1090 MK(K)=MK(K)-(AK(K)-Z(I,2))*Z(I,1):QK(K)=QK(K)-Z(I,1): GOTO 1200 mySm:ToT
1100 IF AK(K)>Z(I,2) THEN 1120 h<wF;g,
1110 GOTO 1200 * n)3y.s
1120 IF AK(K)<Z(I,3) THEN 1160 XB &-k<C
1130 QK(K)=QK(K)-Z(I,1)*(Z(I,3)-Z(I,2)) G}tq'#]E{z
1140 MK(K)=MK(K)-Z(I,1)*(Z(I,3)-Z(I,2))*(AK(K)-(Z(I,2)+Z(I,3))/2) )p MZ5|+X
1150 GOTO 1200 NC 0H5
1160 QK(K)=QK(K)-Z(I,1)*(AK(K)-Z(I,2)) VK+#!!Ha
1170 MK(K)=MK(K)-Z(I,1)*(AK(K)-Z(I,2))^2/2: GOTO 1200 2
AZ[gr@c
1180 IF AK(K)>Z(I,2) THEN MK(K)=MK(K)+Z(I,1) 9's/~ T
1200 NEXT I 8u::f`vi
1205 NEXT K %Nb hR(
1210 FOR K=1 TO N MR90 }wXE
1220 S=0:Q=0 0;-S){
1230 FOR I=1 TO N RN?z)9 !
1240 IF I>K THEN Y(K)=X2(I*(I-1)/2+K)*B1(I)+Y(K): GOTO 1260 z/7H/~d
1250 Y(K)=X2(K*(K-1)/2+I)*B1(I)+Y(K) iz`u@QKc%
1260 NEXT I
")U`W gx
1265 Y(K)=B1(N+1)+AK(K)*B1(N+2)-Y(K) $ V"~\h8
1267 IF K-1<1 THEN 1300 >mT< AQ
1270 FOR I=1 TO K-1 _ "ysJ&
1280 S=S+B1(I):Q=Q+B1(I)*(AK(K)-AK(I)) i6[,m*q~2x
1290 NEXT I \jdp L1
1300 QK(K)=QK(K)+S+.5*B1(K) 0VV 1!g
1310 MK(K)=MK(K)+Q+C*B1(K)/8 K/ q:aMq
1315 NEXT K Aa5IccR
1320 FOR K=1 TO N ba?]eK
1330 D(K)=B1(K)/C ;a+>><x]
1340 NEXT K 13]sZ([B%|
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)" \^wI9g~0
1360 FOR I=1 TO N <dTo-P
1370 LPRINT TAB(1); INT (100*(I-.5)*C+.5)/100;TAB(8); INT (100*D(I)+.5)/100; 6 m 5 \f
1372 LPRINT TAB(23); INT (100*MK(I)+.5)/100;TAB(36); INT (100*QK(I)+.5)/100; edPnC
{?s
1373 LPRINT TAB(49); INT (100*(Y(I)*100)+.5)/100 Cm;WQuv@
1375 NEXT I _|MY/SN4A
1378 GOTO 1710 8KpG0DC
1380 LPRINT " THE END": JF >mybB
1420 END %a X<p{EY
1500 G1=2*X/C+1 877>=Tp |
1520 DIM C1(N1-1) BPnZ"w_
1525 FOR I=1 TO N1 <R:KR(bT
1527 IF I-1<1 THEN 1567 a#=GL B_P(
1530 I1=I*(I-1)/2 T8.@ }a
1535 FOR J=1 TO I-1 f 8E
S
GU
1540 S=0:J1=J*(J-1)/2:J2=J*(J+1)/2 ChLU(IPo6
1543 IF J-1<1 THEN 1560 u OEFb
1545 FOR K=1 TO J-1 V(3udB@K
1550 S=S+C1(K)*F(J1+K) Q:]F* p2
1555 NEXT K ku* |?uF
1560 C1(J)=F(I1+J)-S:F(I1+J)=C1(J)/F(J2) 1anV!&a<K(
1565 NEXT J ;bd\XHwMUP
1567 S=0:I2=I*(I+1)/2 {Ex0mw)T
1568 IF I-1<1 THEN 1585 63QSYn,t
1570 FOR K=1 TO I-1 P X](hc=
1575 S=S+C1(K)*F(I1+K) a$I;
L
1580 NEXT K _4z>I/R>Z
1585 F(I2)=F(I2)-S H F wT
1590 NEXT I K \}xb2s
1595 FOR I=1 TO N1 cI3uH1;#
1600 I1=I*(I-1)/2:S=0 ?K7 m:Dx
1603 IF I-1<1 THEN 1625 z(^p@&r)F
1605 FOR K=1 TO I-1 AM}-dKei|
1610 S=S+F(I1+K)*B1(K) %Gn(b 1X
1615 NEXT K GYiUne $
1620 B1(I)=B1(I)-S 35yhe:$nf
1625 NEXT I L4aT=of-
1630 FOR I=1 TO N1 R
Nr=M^Zn
1635 I2=I*(I+1)/2:B1(I)=B1(I)/F(I2) {y|y68y0+
1640 NEXT I @ :i>q$aF
1645 FOR I=N1 TO 1 STEP -1 EIl _QV6
1647 IF I+1>N1 THEN 1668 J=/| iW
1650 S=0 a%f5 dj+
1655 FOR K=I+1 TO N1 1$fA9u$
1660 S=S+F(K*(K-1)/2+I)*B1(K) m=2TzLVv
1663 NEXT K a pUV6h-v
1667 B1(I)=B1(I)-S:D(I)=B1(I)/C (jk jj7a
1668 NEXT I m p~\ioI*d
1700 RETURN {M]m cRB(
1710 GOTO 1380 J#CF S G
1740 S1=0:I1=1: IF AK(K)>=B2 THEN 1770 l\5}\9yS
1745 M1=B2-X(I1-1):M3=AK(K)-X(I1-1):JK=E*B*H(I1)^3/12 wX7B&w8wV
1750 IF X(I1)>AK(K) THEN 1765 `xkJ.,#I o
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 au8b Ew&W
1758 IF X(I1)=AK(K) THEN 1790 kTG}>I
1760 I1=I1+1: GOTO 1745 FXFQ@q*}v
1765 M2=B2-AK(K):S1=S1+(2*M1*M3+M2*M3)*(M1-M2)/6/JK n<7#?X7
1768 GOTO 1790 YTq>K/
1770 M1=B2-X(I1-1):M3=AK(K)-X(I1-1):JK=E*B*H(I1)^3/12 -5A@F Gh
1772 IF X(I1)>B2 THEN 1785 uH]n/Kv1,
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 muQ7sJ9
r
1780 IF X(I1)=B2 THEN 1790 /Mf45U<
1782 I1=I1+1: GOTO 1770 ;w?zmj<Dm
1785 M4=AK(K)-B2:S1=S1+(2*M1*M3+M1*M4)*(M3-M4)/6/JK L iJ;A*
1790 RETURN 8oY0?|_Bx
1800 G1=2*X/C+1:G2=2*X/C-1 ^!|BKH8>f%
1805 G3=2*X/B:G4=G3-C/B:G3=G3+C/B {S\cpCI`
1810 S0=2* LOG (B/C)- LOG (G1*G2)-2*X/C* LOG (G1/G2) &hs)}uM&$
1815 G2= SQR (G3^2+1):G1= SQR (G4^2+1) C+}uH:I'L
1820 S0=S0+B* LOG ((G3+G2)/(G4+G1))/C GZ@!jF>!u
1825 S0=S0+2*X* LOG ((1+G2)/(1+G1))/C J3Q.6e=7
1830 S0=(S0+ LOG ((1+G2)*(1+G1)))/B*C knypSgk_
1835 RETURN WJ\YKXG
1850 G1=2*X/C+1 K:P gkc
1855 S0=2*X/C-1:S0=-2*X* LOG (G1/S0)/C- LOG (G1*S0) 8 k+Ctk
1860 RETURN oZ%t! Fl1
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 Hu x#v>e
1905 S2=S2+(AK(K)+2*Z(I,3))*(A2^3-A1^3)/6-(A2^4-A1^4)/8 rQK2&37-,@
1910 RETURN 8T
6jM+ h
