# Page David

 Nov 13 awarded Yearling Oct 23 awarded Popular Question Oct 8 awarded Scholar Oct 8 awarded Supporter Oct 8 accepted tasks package: items are in two line with 4 columns and 4 items Sep 28 accepted Approximate roots for Arbitrary-Degree Polynomial - two close roots Sep 27 awarded Notable Question Sep 8 comment Approximate roots for Arbitrary-Degree Polynomial - two close roots@NoChance I'd like to describe $\tau_i$ as placeholders, or maybe unknwons, writing polynomial in the form of $P(x)=...(1+\tau_is)...$ then control theory results can be easily applied. When roots are separated, the result is $\tau_i{\approx}a_i/a_{i-1}$. Sep 8 revised Approximate roots for Arbitrary-Degree Polynomial - two close rootst to tau Sep 8 awarded Editor Sep 8 revised Approximate roots for Arbitrary-Degree Polynomial - two close rootsadded 142 characters in body Sep 7 asked Approximate roots for Arbitrary-Degree Polynomial - two close roots Sep 4 comment Sync Buck - how to estimate switching loss?@joribama In question (a), conduction loss is included xD. Sep 4 asked Sync Buck - how to estimate switching loss? Jul 30 accepted Circuit - solve Kirchhoff's laws with determinant? Jul 30 comment Circuit - solve Kirchhoff's laws with determinant?Things are clear for me, and I'd like to attach Nodal admittance matrix here as a reference. Jul 30 awarded Custodian Jul 30 reviewed Edit suggested edit on Circuit - solve Kirchhoff's laws with determinant? Jul 30 revised Circuit - solve Kirchhoff's laws with determinant?formatted in mathjax (preserved original image links for reference) Jul 30 comment Circuit - solve Kirchhoff's laws with determinant?It works like a magic. But what's mathematical theory behind this?