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第三百四十五章 搞搞师生关系

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他先概述了一下数学的重要性,然后把各种数学公式列举一些出来,浅一点的如梯形面积计算公式,深一点如三角函数公式,先说明运算法则,再举些实例,最后出道应用道让别人来挑战。

每期京华时报开出的一版面来,系统地讲解这些数学定理,相信这样一来,进太学做个明算科教授当是不难了。

许清沉浸在数学世界里,清平轻步走进来,他也浑然不觉,等他满意有放下笔,清平才问道:“相公,你在做什么?”

“哦,是曦儿啊!你来得正好,先看看相公写这些运算法则,然后相公出道题给你做,看你这才女能不能做出来。”

许清把她拉倒自己腿上坐好,然后把那梯形面积计算公式拿给她看。

和许清探讨学问,光这个嚼头就让清平开心不已,俩人订下亲后,清平一个人的时候,就不知遐想过多少回与他窗前焚香弄墨,雪夜煮酒论诗的情景!

现在探讨的虽然不是她擅长的诗词,但只要是和爱人一起,在清平看来就没什么分别。

清平先是回身揽住他的脖子,依偎着亲了他一口中,才满脸笑意的说道:“相公等着!”

清平接过纸张,细看起上面的公式来;包括梯形的概念,许清都写很清楚,清平以前虽然没有接触过这些知识,却也很快能看懂大概。

看完再向他求解了不少疑问,比如小数点,平方尺这些许清弄出来的表述方法等,便兴奋地说道:“相公快请出题!”

许清瞧她自信满满的样子,本打算难一难她,但又担心太难会打坏她的积极性,便在纸上一边把梯形画出来,一边说道:“看好了,这个梯形下底长六尺六寸,上底长两尺三寸,高是下底的三分之一,郡主殿下,给您半盏时间,若是无法计算出面积来就家法侍候!”

这个不难,平清紧张的运算一下,便得出了正确的答案,开心地问道:“相公,对不对?”

许清含笑点点头,清平象得了糖果的小孩般开心,温润的腰肢在他怀里扭动着,张开玉臂又抱住他的脖子献上香吻。

“再来,再来,相公快出题!”

“好啊,曦儿既然这么有信心,这回相公出道难的,若是曦儿做不出来,相公可要打屁股哦!”

接下来许清依旧是一边画图一边说道:“已知梯形甲乙丙丁四个顶点,甲丁平行于乙丙,且甲丁等于3尺,乙丙等于7尺,对角线甲丙等于8尺,乙丁等于6尺,好了,现在请郡主把面积求面来。”

这下清平纠结了,不知道怎么把梯形的高度运算出来,一双黛眉微蹙,拿着笔比划了半天也无从下手。

许清喝完一口茶,见她贝齿轻啃着下唇,便用手指把她那水润的下唇‘解放’出来,她竟没反应,许清乐得偷笑不已。

“相公,人家算不出来!”

过一盏茶功夫,清平无奈地放下笔,花靥上满是不甘的神色,怀疑地说道:“这没有高度,怎么可能算得出来,相公不会是胡乱出道无解之题唬人家的吧!”

许清哈哈笑道:“郡主殿下,下官若是把这题做出来你待怎说?”

清平看着他伸出一个巴掌比划着,还不时扫一眼自己的翘臀,脸儿一红,最后还是下定决心道:“相公若能把面积求出来了,人家依着相公就是。”

许清抱着她摊开一张白张,嗯嗯,这题有些复杂,得来张大一点的纸张才行。

“郡主看好了,咱们先作乙丙的延长线到戊点,使乙戊长度等于甲丁,因为甲丁平行于乙丙,所以三角形甲乙戊面积等于三角形甲丙丁面积……”

许清一边画图一边讲解,这次计算方法要用到三角形、平行四边形等方面的知识,当许清最后运算出梯形面积为24平方尺时,清平听得还晕晕呼呼的。

许清只得把涉及到的知识一一向她讲解,又反复推演了好几回,聪明伶俐如清平郡主才总算明白了个大概。

“再来,相公快点出题!”

清平已全然被这些全新的知识给迷住了,学得越多,反而觉得自己所知越少,扶着许清的脸,恨不得把他所有的知识都挖出来似的;娇躯婉转郎膝上,淡淡的体香中人欲熏。

许大官人却不为所动,伸出自己的右手作掌上观纹状,仔细研究着:“以前还真没注意到,相公的右手竟是断掌纹,生命线很长,这爱情线很……粗!看来娶七八个……呃,不对,不对,男左女右,应该看左手才对……”

清平见他举着手掌来回比划,哪里还不明白他意欲何为,粉脸早已艳若窗外的海棠,咬着嘴唇俏生生是瞟了他一眼,才从膝上站起来,然后扶着书桌弯下绵软的柳腰,将那香臀高高的翘起来。

“相公,你可要轻些儿……”

听着清平那糯糯的声音,再看那香臀儿,浑圆,形如苹果,清平仿佛是怕他打疼似的,玉手还在香臀上抚来抚去……

许清官人差点没流下鼻血来,抬起手掌竟有点无从下手的感觉。

啪的一声轻响,清平只感香臀上传来一阵酥麻;

第二掌打下来时,竟再也听不到声音,香臀上被一只大手轻轻抚摸着,清平霞飞双颊,大手抚摸过的地方如电流通过,腰儿软了,腿儿酥了,嘤咛一声坐回他怀中。

“啊!”

清平突然感觉被什么东西刺了一下,瞬间又跳了起来,双手捂着滚烫的脸孔再不敢看他一眼。

“相……相公,你好坏!”

许清尴尬异常,这个……这个纯属自然反应,他赶紧翘起二郎腿,把作案的凶器收了起来。

“咳咳……曦儿啊,那个,你误会了,相公刚才只是在腰间收了支笔……呃!不对,不对,是收了根擀面杖!”

笔太小,肯定不足以让清平采信,擀面杖就恰当多了!

许大官人还在努力地更正着,清平哪里顾得看他比划,捂着脸蛋就往外跑。

“曦儿!别走啊!相公继续给你出题……”

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