Eig(A) returns long fractional answer instead of a single number
2 次查看(过去 30 天)
显示 更早的评论
Eig(A) returns
(22/(9*(- 5/3 + (8623^(1/2)*1i)/27)^(1/3)) + ((8623^(1/2)*1i)/27 - 5/3)^(1/3) - 3)^(1/2)
instead of
-0.7462i
Is there a way to change it so decimal answers appear?
0 个评论
回答(3 个)
Steven Lord
2020-7-19
编辑:Steven Lord
2020-7-19
If the symbolic expression doesn't contain a symbolic variable and you're okay with approximating it in double precision, call double on it.
If it does contain a symbolic variable or your need a numeric approximation to higher than double precision, use the vpa function.
If you don't need to define A as a symbolic expression, define it as a double array and call eig on that numeric array.
0 个评论
madhan ravi
2020-7-19
sympref('FloatingPointOutput',1) % run this once and you don’t have to call vpa() or double() every single time
doc sympref
0 个评论
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Logical 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!