dy/dx=√(2*(y^3/3+0.9711-y)) 如何用matlab求解出不定积分
来源:学生作业帮 编辑:作业帮 分类:综合作业 时间:2024/05/18 13:26:16
dy/dx=√(2*(y^3/3+0.9711-y)) 如何用matlab求解出不定积分
用desolve求解的话会出现以下几个问题
1.
>> dsolve('Dy=(2*(y^3+1-y+0.9711))^0.5')
Warning:Explicit solution could not be found; implicit solution returned.
> In dsolve at 310
ans =
t-Int(100/(20000*_a^3+39422-20000*_a)^(1/2),_a = ..y)+C1 = 0
2.
int(100/(20000*a^3+39422-20000*a)^(1/2),0,1)
ans =
2*10^(1/2)/((354798*(26609850+150*30270405201^(1/2))^(1/3)+2.(中间好长起码有十几行).(26609850+150*30270405201^(1/2))^(1/3))^(1/2))
用desolve求解的话会出现以下几个问题
1.
>> dsolve('Dy=(2*(y^3+1-y+0.9711))^0.5')
Warning:Explicit solution could not be found; implicit solution returned.
> In dsolve at 310
ans =
t-Int(100/(20000*_a^3+39422-20000*_a)^(1/2),_a = ..y)+C1 = 0
2.
int(100/(20000*a^3+39422-20000*a)^(1/2),0,1)
ans =
2*10^(1/2)/((354798*(26609850+150*30270405201^(1/2))^(1/3)+2.(中间好长起码有十几行).(26609850+150*30270405201^(1/2))^(1/3))^(1/2))
1.
Warning:Explicit solution could not be found; implicit solution returned.
这表示该微分方程无显式解
2.
syms a
I=int(100/(20000*a^3+39422-20000*a)^(1/2),0,1);
double(I) % 转换一下就可以了
Warning:Explicit solution could not be found; implicit solution returned.
这表示该微分方程无显式解
2.
syms a
I=int(100/(20000*a^3+39422-20000*a)^(1/2),0,1);
double(I) % 转换一下就可以了
dy/dx=√(2*(y^3/3+0.9711-y)) 如何用matlab求解出不定积分
微分方程求解:型如dx=y+z;dy=x-z;dz=dx+3dy的微分方程用matlab能求解吗?
如何用matlab求解dy/dt=1+y^2方程的解
微分方程求解 (x^2y^3+xy)dy=dx
求解微分方程 dy/dx-y=x*y^3
2009-5-15 如何用MATLAB 求微分方程d^y/d(x)^2+2*dy/dx +2y=0在满足y(0)=1,y
用MATLAB求解微分方程dy/dx-2y/(x+1)=(x+1)^5/2
求解一道微分方程题x*y^3*dy+(y^4-x^2)*dx=0
求解微分方程dy/dx +y=y^2(cosx-sinx)
matlab中如何表示dy/dx=y/A式并求A?x=1:2:10 y=x.^3 dy/dx=y/A
matlab求(d³y)/dx³+3(dy/dx)+2y=6的通解
matlab 龙格库塔法求解微分方程dy/dx)=y^2+x,初值为x(0)=5 ,y(0)=2