- (of a singularity of a function of a complex variable) noting that the Laurent series at the point has an infinite number of terms with negative powers.
- (of a discontinuity) noting that the function is discontinuous and has no limit at the point.Compare removable (def. 2).
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How to use essential in a sentence
Sparkle on, you funky diamonds, and please keep doing what you’re doing — it may not be considered essential work, but it’s definitely essential art.BTS’s new album is sublime comfort pop for the soul in lockdown|Aja Romano|November 20, 2020|Vox
Instead, they went straight to Huntingdon Borough Mayor David Wessels to pick the winner, and they decided to deliver the rest of the cookies to essential workers after the victor was named.
Employees inside essential business, such as a pharmacy or a restaurant, are also required to wear face coverings.Virginia’s coronavirus numbers are rising. Here’s what you need to know.|Antonio Olivo|November 20, 2020|Washington Post
For six days, only one person from a household will be allowed to leave home each day, and only for essential reasons, authorities said.One of the world’s strictest new lockdowns bans outdoor exercising and dog-walking|Claire Zillman, reporter|November 19, 2020|Fortune
In the capital city of Melbourne, restrictions began to be lifted in late October after a grueling 111 days during which residents could only leave their homes for essential activities.These countries managed to turn COVID-19 around. Here’s how we could do the same.|Kate Baggaley|November 17, 2020|Popular-Science
We now come to consider the present state of our knowledge on the essentialness of the ash or mineral portion of the plant.Manures and the principles of manuring|Charles Morton Aikman