# Merge tags conditioning and condition-number?

I'd like to suggest merging these two tags for the following reasons.

• Both tags are under-utilized; many questions cover the topic of matrix conditioning, either in statement or in answers, but are not tagged as such. This may occur in part due to tag ambiguity.
• There are only 4 questions tagged with compared to 16 with , but the topics covered are essentially identical.
• The notions of matrix conditioning and condition number are inextricably linked; the former refers to the magnitude of the latter.

Is there any reason we should keep these tags separate or hesitate in enacting a global merge?

• Generally, conditioning is about error propagation of a functional. If $f$ measures the deviation in the solution $x$ of $Ax=b$ for a disturbance in $b$, one ends up with a parameter that is referred to as condition number. – Jan May 28 '13 at 16:51