Convergence articles

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A method for extracting square roots used in Italy through the 18th century was introduced in a manuscript by the 12th century mathematician al-Hassar. Appendix: When Was Fermat Born? (Not in 1601 ...)
Two cog-wheels, one having 26 cogs, and the other 20 cogs, run together. In how many revolutions of the larger wheel will the smaller gain in 12 revolutions?
In the figure at the left, if the radii of each inscribed circle is 1, what are the dimensions of the bounding rectangle?
After a terrible battle it is found that 70% of the soldiers have lost an eye.
There is a right triangle where: the sum of the upright multiplied by itself twice and the hypotenuse multiplied by itself is 700 units; and, the sum of the base multiplied by itself twice and the hypotenuse multiplied by itself is 900 units.
A gallery of episodes from the history of calculus.
A father wills his estate valued at $40, 000 to his three children. Before the settlement one of the children dies. What should the other two receive? X, Y and Z hired a pasture for the season for$90.00. Each has a different number of mules and are on the pasture for a different number of days. How much is each to pay?