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[Compress-Decompress algrithms] gravity DL : 0: function dg=gplus(x,y,z,x1,x2,y1,y2,z1,z2,p) G=6.67e-11 t222=myfun(x,y,z,x2,y2,z2) t122=myfun(x,y,z,x1,y2,z2) t212=myfun(x,y,z,x2,y1,z2) t221=myfun(x,y,z,x2,y2,z1) t211=myfun(x,y,z,x2,y1,z1) t121=myfun(x,y,z,x1,y2,z1) t112=myfun(x,y,z,x1,y1,z2) t111=myfun(x,y,z,x1,y1,z1) dg=-G*p*1e6*(t222-t122-t212-t221+t211+t121+t112-t111) 转化为g.u. function y=myfun(x,y,z,xi,eta,zeta) R=sqrt((xi-x).^2+(eta-y).^2+(zeta-z).^2) temp1=(xi-x).*log((eta-y)+R) temp2=(eta-y).*log((xi-x)+R) temp3=(zeta-z).*atan((zeta-z).*R/((xi-x).*(eta-y))) 书中所给公式 temp3=-(zeta-z).*atan((xi-x).*(eta-y)./(zeta-z)./R) 上式变换 y=temp1+temp2+temp3 -function dg = gplus (x, y, z, x1, x2, y1, y2, z1, z2, p) G = 6.67e-11 t222 = myfun (x, y, z, x2, y2, z2) t122 = myfun (x, y, z, x1, y2, z2) t212 = myfun (x, y, z, x2, y1, z2) t221 = myfun (x, y, z, x2, y2, z1) t211 = myfun (x, y, z, x2, y1, z1) t121 = myfun (x, y, z, x1, y2, z1) t112 = myfun (x, y, z, x1, y1, z2) t111 = myfun (x, y, z, x1, y1, z1) dg =-G* p* 1e6* (t222-t122-t212-t221+t211+t121+t112-t111) converted the Gu function y = myfun, (x y, z, xi, eta, zeta) R = sqrt ((xi-x). ^ 2+ (eta-y). ^ 2+ (zeta-z). ^ 2) temp1 = (xi-x).* log ((eta-y)+R) temp2 = (eta-y).* log ((xi-x)+R) temp3 = (zeta-z).* atan ((zeta-z).* R/( (xi-x).* (eta-y))) book given formula Temp3 =- (Zeta-z)* ATAN ((Xi-X)* (ETA-y)/(Zeta- Z)/R) the above formula transform Y = temp1+temp2+temp3
Date : 2026-01-09 Size : 284kb User : 周峰
[Compress-Decompress algrithms] zhonglikantan-dixinggaizheng DL : 1: 物探重力勘探地形改正正演程序，计算时，将量板的中心点放在地形图的测点上，读出每个扇形住的平均高程-Gravity geophysical prospecting exploration Terrain forward procedure, when calculating the amount of the center of the plate on the measuring point topographic maps, read an average elevation of each segment live, will each
Date : 2026-01-09 Size : 7kb User : 郑超
[Compress-Decompress algrithms] zhonglikantan-pinghua2D DL : 0: 重力勘探二维平滑MATLAB程序，效果明显。本程序是花了很多心血才编出来的，希望可以和大家共享和交流-MATLAB dimensional smooth gravity exploration program, the effect is obvious. This procedure is to spend a lot of effort was made out of, and we hope to share and exchange
Date : 2026-01-09 Size : 2kb User : 郑超
[Compress-Decompress algrithms] zhonglikantan-pinghua1D DL : 0: 重力勘探一维平滑MATLAB程序，效果明显。本程序是花了很多心血才编出来的，希望可以和大家共享和交流-MATLAB dimensional smooth gravity MATLAB one-dimensional smooth gravity exploration program, the effect is obvious. This procedure is to spend a lot of effort was made out of, and we hope to share and exchange
Date : 2026-01-09 Size : 7kb User : 郑超