我有以下功能:
function ypdiff = ypdiff(t,y)
a = 0.01;
b = 0.1;
ypdiff(1) = -a*y(1)*y(2);
ypdiff(2) = b*y(1)*y(2)-b*y(2);
ypdiff(3) = b*y(2);
ypdiff = [ypdiff(1) ypdiff(2) ypdiff(3)]';
如果我想解决这个问题,我将调用ode45函数,如下所示:
[t y] = ode45(@ypdiff, [to tf], yo);
但是如果我想给这个函数传递一个参数,我将如何使用ode45函数具体来说,我正在尝试以下公式:
function ypdiff = ypdiff(t,y,u)
a = 0.01;
b = 0.1;
ypdiff(1) = -a*u*y(1)*y(2);
ypdiff(2) = b*u*y(1)*y(2)-b*y(2);
ypdiff(3) = b*u*y(2);
ypdiff = [ypdiff(1) ypdiff(2) ypdiff(3)]';
最佳答案
您可以在matlab中使用anonymous function(类似于其他语言中的lambda函数):
u = 1.2;
[t y] = ode45(@(t, y) ypdiff(t, y, u), [to tf], yo);