Page:The Whetstone of Witte.djvu/125

There was a problem when proofreading this page.

forme or worke again. First settyng doune the triple of the whole quotiente, whiche is. 108. so that it shall stande vnder. 11761. or vnder. 761. accoumptyng figure for figure.

That triple must I multiplie againe by the whole quotiente. 36. and it will make. 3888. whiche nomber I muste take for my diuisor.

Wherfore I seke how many times, I maie finde that diuisor in. 11761. and I see, it will bee. 3. tymes. Therfore I set. 3. as my quotiente, in his due place: and by that quotient I do multiplie. 3888. and so haue I for my firste nomber. 11664.

Againe I doe multiplie the laste quotiente. 3. squarely, and so haue I. 9. whiche I shall multiplie by the triple of the former quotient, and it yeldeth. 972. that shall be set more nigher the right hande, by one place.

Thirdly, I take the Cube of. 3. whiche is. 27. and that doe I set yet one place more towarde the righte hande.

Then doe I adde those 3 sommes into one, and thei make. 1176147. whiche is equalle somme, with all the nombers ouer it, that be vncancelled.

Wherfore I saie that. 47832147. is a Cubike nomber, and the cubike roote of it is. 363.

The nigheste roote in a nōmber not Cubike Master. Now doeth the order of teachynge require, that I should instructe you, how to extracte the nigheste Cube roote, out of any nomber, that is not a true Cube. As this nomber for example maie serue. 694582951.

Where firste I muste extracte the nigheste roote, as I tanghte you, for the nigheste Square rootes, in nōbers that are not square: and then shall I note the re-mainer:

This article is issued from Wikisource. The text is available under Creative Commons Attribution-Share Alike 4.0 unless otherwise noted. Additional terms may apply for the media files.