代码搜索：gradient
找到约 2,951 项符合「gradient」的源代码
代码结果 2,951
www.eeworm.com/read/103618/15727556
m exm05522_2.m
%exm05522_2.m
clear;clf;
q=2e-6;k=9e9;a=1.5;b=-1.5;
x=-6:0.6:6;y=x;
[X,Y]=meshgrid(x,y);
rp=sqrt((X-a).^2+(Y-b).^2);
rm=sqrt((X+a).^2+(Y+b).^2);
V=q*k*(1./rp-1./rm);
[Ex,Ey]=gradient(-V);
AE=
www.eeworm.com/read/435844/7782968
m exm044_4.m
%exm044_4.m
clear,
dd=0.2;
x=-1:dd:1;y=x;
[X,Y]=meshgrid(x,y);
Z=(X.^2)+(Y.^2);
[DZx,DZy]=gradient(Z,dd,dd);
DZ2=4*del2(Z,dd,dd);
%与理论计算比较
DDZx0=DZx-2*X;DDZy0=DZy-2*Y;DDZ20=DZ2-4;
subplot(1,
www.eeworm.com/read/227861/14408260
m exm044_4.m
%exm044_4.m
clear,
dd=0.2;
x=-1:dd:1;y=x;
[X,Y]=meshgrid(x,y);
Z=(X.^2)+(Y.^2);
[DZx,DZy]=gradient(Z,dd,dd);
DZ2=4*del2(Z,dd,dd);
%与理论计算比较
DDZx0=DZx-2*X;DDZy0=DZy-2*Y;DDZ20=DZ2-4;
subplot(1,
www.eeworm.com/read/240722/4570434
qci uscf.qci
test_basis: STO-3G 6-311G**
test_method: uhf uxalpha uhfk uhfs uhfb uhfg96 ublyp ub3lyp upbe upw91 ub3pw91 ubpw91 ub3p86 ubp86 uspz81
gradient: yes
test_molecule: h2o dh2 ch2
test_mole
www.eeworm.com/read/240722/4570437
qci dft.qci
test_basis: 6-31G*
test_method: HFS
gradient: yes
test_molecule: h2 lih beh2 b2h6 nh3 ch4 c2h4 c2h2 h2o hf
nah mgh2 alh sih2 ph3 h2s hcl
test_molecule_symme
www.eeworm.com/read/240722/4570498
qci symm1.qci
test_basis: STO-3G
test_method: scf mp2
gradient: yes
test_molecule: c2h2 c2h2 c2h2 c2h2 c2h2 c2h2
cub cub cub cub cub cub
test_molecule_symmetry: d2h c2v cs
www.eeworm.com/read/392361/8348531
m exm044_4.m
%exm044_4.m
clear,
dd=0.2;
x=-1:dd:1;y=x;
[X,Y]=meshgrid(x,y);
Z=(X.^2)+(Y.^2);
[DZx,DZy]=gradient(Z,dd,dd);
DZ2=4*del2(Z,dd,dd);
%与理论计算比较
DDZx0=DZx-2*X;DDZy0=DZy-2*Y;DDZ20=DZ2-4;
subplot(1,
www.eeworm.com/read/368108/9711650
m exm044_4.m
%exm044_4.m
clear,
dd=0.2;
x=-1:dd:1;y=x;
[X,Y]=meshgrid(x,y);
Z=(X.^2)+(Y.^2);
[DZx,DZy]=gradient(Z,dd,dd);
DZ2=4*del2(Z,dd,dd);
%与理论计算比较
DDZx0=DZx-2*X;DDZy0=DZy-2*Y;DDZ20=DZ2-4;
subplot(1,
www.eeworm.com/read/240722/4570494
qci clscf.qci
test_basis: STO-3G 6-311G**
test_method: hf xalpha hfk hfs hfb hfg96 blyp b3lyp pbe pw91 b3pw91 bpw91 b3p86 bp86 spz81
gradient: yes
test_molecule: h2o h2o
test_molecule_symmetry: c1 c2v
r
www.eeworm.com/read/240722/4570591
qci symm2.qci
test_basis: cc-pVDZ cc-pVTZ cc-pVQZ cc-pV5Z
test_method: scf
gradient: yes
test_molecule: c2h2ns c2h2 c2h2 c2h2 c2h2 c2h2 c2h2
test_molecule_symmetry: auto d2h c2v cs c2 ci c1
te