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单板单板之法,每长一丈、阔壹尺、厚一寸为一个。个者,片也。即今算板之一丈也。木有尖削弯扁空朽者,计其所欠之数而折除之,视板数以减其价。但算时须头稍相折,大小适中,若止以头围为据,则稍细而少板,又失立法初意矣。
(楠木)围叁尺围肆尺
围伍尺(每长壹丈)计(柒个伍分)计(拾叁个叁分叁厘叁毫)计(贰拾个捌分叁厘叁毫)(加围壹寸)计(捌个捌毫)计(拾肆个捌毫)计(贰拾壹个陆分柒厘伍毫)(加围贰寸)计(捌个伍分叁厘叁毫)计(拾肆个柒分)计(贰拾贰个伍分叁厘叁毫)(加围叁寸)计(玖个柒厘伍毫)计(拾伍个肆分捌毫)计(贰拾叁个肆分捌毫)(加围肆寸)计(玖个陆分叁厘叁毫)计(拾陆个壹分叁厘叁毫)计(贰拾肆个叁分)(加围伍寸)计(拾个贰分捌毫)计(拾陆个捌分柒厘伍毫)计(贰拾伍个贰分捌毫)(加围陆寸)计(拾个捌分)计(拾柒个陆分叁厘叁毫)计(贰拾陆个壹分叁厘叁毫)(加围柒寸)计(拾壹个肆分捌毫)计(拾捌个肆捌毫)计(贰拾柒个柒厘伍毫)(加围捌寸)计(拾贰个叁厘叁毫)计(拾玖个贰分)计(贰拾捌个叁厘叁毫)(加围玖寸)计(拾贰个陆分柒厘伍毫)计(贰拾个捌毫)计(贰拾玖个捌毫)(楠木)
围陆尺围柒尽
围捌尺(长壹丈)计(叁拾个)计(拾个捌分叁厘叁毫)计(伍拾叁个叁分叁厘叁毫)(加围壹寸)计(叁拾壹个捌毫)计(拾贰个捌毫)计(伍拾肆个陆分柒厘伍亳)(加围贰寸)计(叁拾贰个叁厘叁毫)计(拾叁个柒分)计(伍拾陆个叁厘叁毫)(加围叁寸)计(叁拾叁个柒厘伍毫)计(拾肆个肆分捌毫)计(伍拾柒个肆分捌毫)(加围肆寸)计(叁拾肆个壹分叁厘毫)计(拾伍个陆分叁厘叁毫)计(伍拾捌个捌分)(加围伍寸)计(叁拾伍个贰分捌毫)计(拾陆个捌分柒厘伍毫)计(陆拾个贰分捌毫)(加围陆寸)计(叁拾陆个叁分)计(拾捌个壹分叁厘叁毫)计(陆拾壹阵分叁厘叁亳)(加围柒寸)计(叁拾柒个肆分捌毫)计(拾玖个肆分捌毫)计(陆拾叁个柒厘伍毫)(加围捌寸)计(叁拾捌个伍分叁厘叁毫)计(贰拾个捌毫)计(陆拾肆个伍分叁厘叁毫)(加围玖寸)计(叁拾玖个陆分柒厘伍毫)计(伍拾个柒分)计(陆拾陆个捌毫)(杉木)
围柒寸伍分围壹尺围贰尺(长壹丈)计(肆分陆厘捌毫)。
计(捌分叁厘叁毫叁丝叁忽)计(叁个叁分叁厘叁毫叁丝叁忽)(加围伍分)计(伍分叁厘毫叁丝叁忽)计(玖坌壹厘捌毫柒丝伍忽)计(叁个伍分贰毫捌忽)(加围壹寸)计(陆分贰毫捌忽)计(壹个捌毫叁丝叁忽)计(叁个陆分柒厘伍毫)(加壹寸伍分)计(陆分柒厘伍毫)计(壹个壹分贰毫捌忽)计(叁个捌分伍厘贰毫捌忽)(加围贰寸)计(柒分伍厘贰毫捌忽)计(壹个叁分贰毫捌忽)计(肆个叁厘叁毫叁丝叁忽)(加贰寸伍分)
计(壹个贰分)计(肆个贰分壹厘捌毫柒丝伍忽)(加围三寸)计(壹个肆分捌毫叁丝叁忽)计(肆个肆分捌毫叁丝叁忽)(加叁寸伍分)
计(壹个伍分壹厘捌毫柒丝伍忽)计(肆个陆分贰毫捌忽)(加围肆寸)计(壹个陆分叁厘叁毫)计(肆个捌分)(加肆寸伍分)
计(壹个柒分伍厘贰毫捌丝)计(伍个贰毫捌忽)(加围伍寸)计(壹个捌分柒厘伍毫)计(伍个贰分捌毫叁丝叁忽)(加伍寸伍分)
计(贰个贰毫捌忽)计(伍个肆分壹厘捌毫柒丝伍忽)(加围陆寸)计(贰个壹分叁厘叁毫叁丝叁忽)计(伍个陆分叁厘叁毫)(加陆寸伍分)
计(贰个贰分陆厘捌毫柒丝伍忽)计(伍个捌分伍厘贰毫捌忽)(加围柒寸)计(贰个肆分捌厘叁毫叁丝)计(陆个柒厘伍毫)(加柒寸伍分)
计(贰个伍分伍厘贰毫)计(陆个叁分贰毫捌忽)(加围捌寸)计(贰个柒分)计(陆个伍分叁厘叁毫叁丝叁忽)(加捌寸伍分)
计(贰个捌分伍厘贰毫捌忽)计(陆个柒分陆厘捌毫柒丝伍忽)(加围玖寸)计(叁个捌毫叁丝叁忽)计(柒个捌毫叁丝叁忽)(加玖寸伍分)
计(叁个壹分陆厘捌毫柒丝伍忽)计(柒个贰分伍厘贰毫捌忽)
慨自六艺教废,数学之不讲久矣。虽荐绅学士,鲜或习之。殊不知画象而易道章,推步而干度着,皆是数之用也,况其小者耶。宋公单板之法,肇制立轨,俾船料之盈缩,物价之增损,咸有准焉,岂直利一时已哉!然考其法,不过围长相乘、一二归除,皆昔人之成法也。而寥寥乎莫有倡明之者。噫!岂郑夹漈所谓小学不传已久,见者不无疑骇与!