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Displaying 1061 - 1070 of 1212
An example is given where Newton's method converges but the limit does not satisfy the equation.
The author investigates the graph of a quartic polynomial with inflection points and finds many regularities, some involving the Golden Ratio.
The author states a "Master Theorem" from which, exploiting concavity, he deduces several classical inequalities.
The creation of 'extriangles' based on a given triangle is iterated, giving rise to four quadrilaterals each with area five times the area of the original triangle.
By providing increasingly simpler test functions, this note places in context a primality test developed by Dennis P. Walsh ("A curious test for primes," this Magazine 80(4), October...
The author shows that two ostensibly different generalizations of the Fundamental Theorem of Algebra are equivalent.
This paper offers a visual illustration of the fact that every octagonal number is the difference of two squares.
The author offers two examples that illustrate important central ideas in introductory linear algebra (independent or dependent vectors; invertible or singular matrices) which may aid students in...
A series of rational numbers whose absolute values converge to a rational number while the series itself converges to an irrational number is presented.