Question

Matlab求解一个微分方程并画图

谢啦，另外这个方程要离散应该怎么离散啊~

Answer 1

把T换成x，把alpha换成y

>> syms x y
>> z=dsolve('Dy=1.44*(10^9)*(1-y)*exp(-109170/(8.314*x))')

z =

C2*exp(-1440000000*t*exp(-131308636035602598027423622804907/(10000000000000000000000000000*x))) + 1

>> pretty(z)

/ / 131308636035602598027423622804907 \ \
C2 exp| - 1440000000 t exp| - -------------------------------------------------- | | + 1
\ \ 10000000000000000000000000000 x / /

追问

初值T=500，alpha=0，图怎么画？