Partial fraction

Status
Not open for further replies.
I try before.
But the calculator shows up "ma error" cause the value for "b" is too small to subtract the "4ac" and I got the negative answer.
√negative answer is getting an error.
 
Is "ma error" the mother of all errors?

So the denominator polynomial has no real solutions. That means the solutions are a complex conjugate pair. You do know what that is -- right?
 
Hi,

The roots are a complex pair.
This means either sin or cos solution (possibly damped).
 
Last edited:
The actual equation is
Y(s)/U(s) = 10/(S^2 + 0.18S + 9).
I was trying to change it to the diagonal form.
And I stuck on factories the denominator.
So,Is there anyone can help me with that?
 
Complete the square. Once you split it into factors its easy to expand. You can practally factor it by inspection.
 
Last edited:
The quadratic formula has always worked for me
Code: 
(-9/100) + (3/100)*√(9991)*i is the root with the positive imaginary part
(-9/100) - (3/100)*√(9991)*i is the root with the negative imaginary part
This transfer function is close enough to the jω axis to make me nervous.
 
Last edited:
Status
Not open for further replies.

Similar threads

partial fractions
Replies
10
Views
2K
MrAl
M
S
Partial Fraction Expansion
Replies
3
Views
2K
MrAl
M
partial derivatives of surfaces like that of drinking glass
Replies
8
Views
2K
steveB
S
converting decimal fraction to binary
Replies
3
Views
5K
carbonzit
C
P
Non-linear partial differential equations
Replies
11
Views
4K
fernandoagv
F
Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…