作业帮matlab函数计算syms f o s z k D t m q T x;p=f-o-(s-o)*(1-erf(0.5*z/(k*D*(t^m)*exp(q*(1/T-1/273))*x.^(1-m)/(1.78*(1-m)))^0.5));pp=subs(p,{f,o,s,z,k,D,t,m,q,T},{0.1,0.02,0.45,25,20,143,0.0767,0.7,6100,293});solve(pp)电脑太慢了,算了好久没
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matlab函数计算syms f o s z k D t m q T x;p=f-o-(s-o)*(1-erf(0.5*z/(k*D*(t^m)*exp(q*(1/T-1/273))*x.^(1-m)/(1.78*(1-m)))^0.5));pp=subs(p,{f,o,s,z,k,D,t,m,q,T},{0.1,0.02,0.45,25,20,143,0.0767,0.7,6100,293});solve(pp)电脑太慢了,算了好久没
matlab函数计算
syms f o s z k D t m q T x;
p=f-o-(s-o)*(1-erf(0.5*z/(k*D*(t^m)*exp(q*(1/T-1/273))*x.^(1-m)/(1.78*(1-m)))^0.5));
pp=subs(p,{f,o,s,z,k,D,t,m,q,T},{0.1,0.02,0.45,25,20,143,0.0767,0.7,6100,293});
solve(pp)
电脑太慢了,算了好久没算出来,不知道是不是我的未知量在误差函数里面,所以不好求.有没有好心人帮我算出来一下,还有,有办法简化吗?
matlab函数计算syms f o s z k D t m q T x;p=f-o-(s-o)*(1-erf(0.5*z/(k*D*(t^m)*exp(q*(1/T-1/273))*x.^(1-m)/(1.78*(1-m)))^0.5));pp=subs(p,{f,o,s,z,k,D,t,m,q,T},{0.1,0.02,0.45,25,20,143,0.0767,0.7,6100,293});solve(pp)电脑太慢了,算了好久没
不慢啊,挺快的,0.4049秒就行
>> tic
syms f o s z k D t m q T x
p=f-o-(s-o)*(1-erf(0.5*z/(k*D*(t^m)*exp(q*(1/T-1/273))*x^(1-m)/(1.78*(1-m)))^0.5));
pp=subs(p,{f,o,s,z,k,D,t,m,q,T},{0.1,0.02,0.45,25,20,143,0.0767,0.7,6100,293});
solve(pp)
toc
ans =
matrix([[0.77241798754647398716752139614632688]])
Elapsed time is 0.404959 seconds.
>>