MATLAB中 ,exp(sym(1))中为什么要将1转换成符号量
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MATLAB中 ,exp(sym(1))中为什么要将1转换成符号量
MATLAB中 ,exp(sym(1))中为什么要将1转换成符号量
MATLAB中 ,exp(sym(1))中为什么要将1转换成符号量
>> y='a*(log(1+b*exp(-x))-log(exp(-x)))/((v*x)^c)-(a*log(1+b*exp(-x+L/v))-a*log(exp(-x+L/v)))/((v*(x-L/v))^c)'
y =
% by dynamic of Matlab技术论坛
% see also
% contact me matlabsky@gmail.com
% 2010-04-25 16:48:02
%
很不幸的告诉您,您的方程太复杂,没法解析的求解出x的表达式
a*(log(1+b*exp(-x))-log(exp(-x)))/((v*x)^c)-(a*log(1+b*exp(-x+L/v))-a*log(exp(-x+L/v)))/((v*(x-L/v))^c)
>> solve(y,'x')
Warning: Explicit solution could not be found.
> In solve at 81
ans =
[ empty sym ]