代码搜索：微分几何
找到约 3,133 项符合「微分几何」的源代码
代码结果 3,133
www.eeworm.com/read/165898/10047438
m ddefun.m
%ddefun.m
%延迟微分方程
function dydt=ddefun(t,y,Z)
dydt = zeros(2,1);
dydt(1) = Z(1,2).^2 + Z(2,1).^2;
dydt(2) = y(1) + Z(2,1);
www.eeworm.com/read/467806/7001667
txt 例1.83.txt
例1.83 求微分方程 的通解。
>> dsolve('Dy=1+y^2')
ans=
tan(t+c1)
www.eeworm.com/read/328259/13037703
m ex2201.m
%例22-1：计算微分方程 的通解。
dsolve('Dy+3*x*y=x*exp(-x^2)')
%...
dsolve('Dy+3*x*y=x*exp(-x^2)','x')
www.eeworm.com/read/319404/13452391
m ex2201.m
%例22-1：计算微分方程 的通解。
dsolve('Dy+3*x*y=x*exp(-x^2)')
%...
dsolve('Dy+3*x*y=x*exp(-x^2)','x')
www.eeworm.com/read/304061/13802238
txt 例1.83.txt
例1.83 求微分方程 的通解。
>> dsolve('Dy=1+y^2')
ans=
tan(t+c1)
www.eeworm.com/read/489586/6466013
txt pidadjustmentformula.txt
1. PID常用口诀:
参数整定找最佳，从小到大顺序查，先是比例后积分，最后再把微分加，曲线振荡很频繁
www.eeworm.com/read/480149/6677752
m ivpodefun.m
%ivpodefun.m
%常微分方程
function dydt = ivpodefun(t,y)
dydt = zeros(2,1);
dydt(1) = y(2);
dydt(2) = (1-y(1)^2)*y(2)-y(1);
www.eeworm.com/read/480149/6677867
m ivpodefun.m
%ivpodefun.m
%常微分方程
function dydt = ivpodefun(t,y)
dydt = zeros(2,1);
dydt(1) = y(2);
dydt(2) = (1-y(1)^2)*y(2)-y(1);
www.eeworm.com/read/480149/6677877
m ddefun.m
%ddefun.m
%延迟微分方程
function dydt=ddefun(t,y,Z)
dydt = zeros(2,1);
dydt(1) = Z(1,2).^2 + Z(2,1).^2;
dydt(2) = y(1) + Z(2,1);
www.eeworm.com/read/409142/11345117
m ivpodefun.m
%ivpodefun.m
%常微分方程
function dydt = ivpodefun(t,y)
dydt = zeros(2,1);
dydt(1) = y(2);
dydt(2) = (1-y(1)^2)*y(2)-y(1);