a differential equation of the form, (x2−x) d 2y/d 2x + [(a+b+1)x−c] dy/dx + abx=0, where a, b, and c are arbitrary constants.
Word Trends: Ninnyhammer, Cyclone, ScionSome words, such as affect, metaphor, and irony, hold relatively steady in lookups at Dictionary.com regardless of what’s happening in pop culture, politics, or social media. Other words shift wildly in rank and volume, often as a ripple effect of a news item or event that has piqued people’s curiosity—we call those trending words. Here are few of our favorite trending words from the week of March 12–18. …
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