第十一章 高人(2 / 2)

大宋天官 迦叶波 1772 字 2022-04-27

中国的算盘起源于东汉,不过那时只是雏形,只能叫算板。一直到唐朝后期,真正的横档算盘才开始出现。后来经过两宋发展,到了宋元交接的时候才小范围普及开来,真正大兴却已经是明朝的事了。所以在北宋朝这根本就是不传之秘,徐茂把那架算盘看得跟命似的,虽然先开始没弄清楚外头闹的什么动静,但紧接着想到这就是他视若生命的算珠声,心里的火登时就起来了。

搞什么名堂!小小年纪什么都不懂也就罢了,怎么连算盘是人命都不懂?是你一个小屁孩能随便扒拉着玩儿的吗?!徐茂此时的感觉就像是别人把他老婆睡了,那种愤怒与耻辱实在无以名状,恼怒之下早就忘了沈谦是沈家郎,“哗”的一声将手里刚数了一半的铜钱狠狠往桌案上一砸,立刻拂袖冲出了屋去,倒把一旁弯着腰数钱的赵玨给吓了一跳,直起身茫然的望着徐茂,见他浑身直发抖,登时懵了。

“我说沈五郎,你……咦?!”

“徐押司怎么了?”

徐押司还能怎么了?傻眼了呗。他虽然高喝了一声,但沈谦就算听见,又哪能接着收手?左手五指灵活的拨弄的算珠,那动作就如高手弹钢琴一般行云流水,再加上算盘上除了此时已经被用到的四五排算珠三下五除二以外,其余档上的算珠都整整齐齐的码在上下两头,让谁看了也不会误以为他是在胡乱拨着玩。

“沈……沈兄会算盘?!不知师从何处?”

这指法就算爹在世也做不到啊!而且居然还是左手……徐茂如见鬼魅般愣在了西间门口,瞅向沈谦的目光彻底变了,甚至嗓子都变了音,一声下意识的“沈兄”登时把内心里无以名状的复杂诠释的清清楚楚。

“呃……”

看见徐茂那副失魂落魄的模样,沈谦心里顿时“咯噔”了一下,接着就意识到出问题了,恐怕算盘在这个时代还是超级计算机一样的神圣存在,自己一下手又是个说不清楚,这玩意儿看样子还真不能乱玩啊……

“哦,是这样,徐押司。”如今也只能瞎编了,“家父原先做过司库,在下自小跟着他看,他也愿意教。所以,呵呵……”

“所以”后边就是让人猜的,司库什么的虽然是瞎编,但却又是个泛称,大家大院里有这差事,朝廷官府里也有,简单地说就是管账的,同是西溪人的赵玨已经跟着徐茂走出来了,沈谦当然只能含糊其词,以免得用一万个谎言掩盖第一个谎言。

赵玨不知道出了什么问题,但人家徐茂却看得清清楚楚,行家里手根本不用多说就能看出一个人的道行。沈谦这般年纪有人教说得过去,但是指法娴熟到这般地步却实在大出徐茂的意料。而且算法与算法不同,古人以十六两为一斤,各项算法也是以此为依据,所以算盘才有上二当五,下五当一的情况,为的就是一直算到十六再进位,而沈谦学的是“一四”档的新算法,也就是十整进,远比十六进制简单得多,但是这样一来最上边哪颗珠子就用不上了。徐茂是内行,自然一眼就看得出来,猛然间发现怪异,连忙下意识的说道:

“沈兄算法似乎与在下家传不大一样啊。”

这方面的情况沈谦就完全清楚了,要不然珠算口诀就算白学了。为了免除解释的麻烦,便连忙起身把徐茂让了过去,指着算盘笑道:

“家父受家祖影响,嫌十六进麻烦,所以独创十进算法。加五进十,破五进十,加一:一上一,一下五去四,一去九进一;减一:一下一,一上四去五,一退一还九……”

这些是后世最基本的珠算法,说不清楚干脆就往大了说,反正徐茂他们也想不出到底是怎么回事。说着话沈谦一边念口诀一边“噼里啪啦”的拨起了算珠,顿时把一时转不过弯来的徐茂看傻了眼。

“……六退一还四,六退,六退一还五……啊啊啊啊!如此奇术沈兄千万别再念了!”

不大会儿工夫,无比震惊的徐茂便发了疯似的高声大叫了起来,一把捂住沈谦拨弄算珠的手,就仿佛生怕最珍贵的宝石要从自己手里跑掉一般,紧接着突然“扑通”一声跪倒在了沈谦面前,二话不说就不分数的“咚咚咚咚”磕起了响头,居然同时呜呜咽咽的哭了起来。

这是干什么?徐茂突然来了这么一手,别说沈谦吓了一跳连忙闪到了一边,就连站在西间门口的赵玨也完全傻了,他别说根本想不明白徐茂这是怎么了,就连沈谦在说什么都完全没听懂……

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