Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
An infinite sum giving the value of a function f(z) in the neighbourhood of a point a in terms of the derivatives of the function evaluated at a.
- ‘One feature was his refutation in 1822 by counterexamples of Lagrange's belief that a function can always be expanded in a Taylor series.’
- ‘This work was highly praised by Lagrange, who gave a similar theory enriched by the Lagrange Remainder for the Taylor series.’
- ‘The same principle could be applied to a polynomial of any degree or to a Taylor series of an analytic function.’
- ‘An approximate method for calculating the bias and variance of a statistic is to expand it as a Taylor series about the true value and examine the expectations of the lower-order terms.’
- ‘Their explanation of why a Taylor series represents a function is incorrect, and they don't discuss the justification for term-by-term differentiation.’
Early 19th century: named after Brook Taylor (1685–1731), English mathematician.
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Before you run for the hills, let’s run through a list of ‘run’ expressions that are running through our minds.
The definitions of ‘buddy’ and ‘bro’ in the OED have recently been revised. We explore their history and increase in popularity.