我正在尝试解决Mathematica中的微分方程,我并不是很了解它。我将在下面显示等式,我的尝试和错误消息:
等式:
dp(t)/dt=rb(1-p(t))
尝试:
b = .02;
d = .015;
r = .1;
h = 1;
t = 0;
Clear[p, t]
DSolve[{p'[t] == r*b*(1 - p[t]), p[0] == .01}, p[t], t]
错误:
DSolve::deqn: Equation or list of equations expected instead of True in the first argument {True,p[0]==0.01}. >>
答案 0 :(得分:1)
您无法设置t=0
,因为它是一个数字。在会话中,以下内容为
b = 2/100;
d = 15/1000;
r = 1/10;
h = 1;
DSolve[{p'[t] == r*b*(1 - p[t]), p[0] == .01}, p[t], t]