Quadrivium Miscellany with Rithmomachia

...if the divisor is a single digit original: minum singulari. Referring to a divisor that occupies only one place on the abacus board.. In whichever line it is placed, let the denominations original: denominationes. In medieval mathematics, this refers to the digits of the quotient. always be located in that same line. If it is [a divisor of] ten, [place the denomination] one line lower. If a hundred, two [lines lower]. If a thousand, three [lines lower], and so on for the others. Just as a proof original: probationem. This refers to the method of checking the division by multiplying the quotient and divisor to see if it returns the dividend. was customary in other divisions, so also in this one you should carry out the multiplication by the denomination of the divisor.

A Poem of Boethius This refers to the famous hymn from Boethius’s The Consolation of Philosophy, Book 3, Meter 9.

O You who govern the world with eternal reason. original: O qui perpetua mundi ratione gubernas. By "Reason," say the wisdom of God through which all things were created and are governed. For He Himself is the Word of God, the Son of God, the Speech of God, and Wisdom. By "eternal reason," say the eternal disposition of God according to which all things exist and were created; "govern" means You rule. "The lands and the sky, the creator who [makes] time [to go] from eternity." original: Terrarum caelique sator qui tempus ab aevo. Or simply, by "sky and land" are understood the elements of the world by which all things exist; or by "sky," angels are signified, while by "earth" the humans who inhabit it are signified. But this metaphor is [drawn] from the living creature to the Creator. "From eternity," that is, [from the moment] He said "Let there be light," since from that beginning the revolution of time began to be.