BRANCKER

, or Branker (Thomas), an eminent mathematician of the 17th century, son of Thomas Brancker some time bachelor of arts in Exeter College, Oxford, was born in Devonshire in 1636, and was admitted butler of the said college Nov. 8, 1652, in the 17th year of his age. In 1655, June the 15th, he took the degree of bachelor of arts, and was elected probationary fellow the 30th of the same month. In 1658, April the 22d, he took the degree of master of arts, and became a preacher; but after the restoration, refusing to conform to the ceremonies of the church of England, he quitted his fellowship in 1662, and retired to Chester: But not long after, he became reconciled to the service of the church, took orders from a bishop, and was made a minister of Whitegate. He had however, for some time, enjoyed great opportunity and leisure for pursuing the bent of his genius in the mathematical sciences; and his skill both in the mathematics and chemistry procured him the favour of lord Brereton, who gave him the rectory of Tilston. He was afterward chosen master of the well-endowed school at Macclesfield, in that county, where he spent the remaining years of his life, which was terminated by a short illness in 1676, at 40 years of age; and he was interred in the church at Macclesfield.

Brancker wrote a piece on the Doctrine of the Sphere, in Latin, which was published at Oxford in 1662; and in 1668, he published at London, in 4to, a translation of Rhonius's Algebra, with the title of An Introduction to Algebra; which treatise having communicated to Dr. John Pell, he received from him some assistance towards improving it; which he generously acknowledges in a letter to Mr. John Collins; with whom, and some other gentlemen, prosicients in this science, he continued a correspondence during his life.