1、重大matlab选修课课件第一次实验内容1回忆你所学过的数学函数,并给出x=3.56时以下函数的值.2. 利用帮助了解向量函数max, min, sum, mean, sort, length,矩阵函数rand, size的功能和用法。操作步骤:先用函数rand生成一个1015的矩阵,再使用上面提到的函数,看看产生什么样的输出。3.设有分块矩阵其中E,R,O,S分别为单位阵、随机阵、零阵和对角阵,试编写一个命令M文件,计算验证。提示:先产生一个矩阵A,计算出A2;另一方面,计算矩阵,比较结果是否一致。4. 4.回忆线性代数的一些基本概念以及基本的运算,查找可以使用哪些命令实现.(1)方阵的行列
2、式 (2)矩阵的秩 (3)方阵的幂 (4)方阵的逆阵(5)向量组的秩 (5)向量组的正交化 (7)方阵的特征向量和特征值.分别举出至少一个例子说明其用法.5.在同一个坐标下作出 y1=1+x, y2=1+x+x2/2, y3=1+x+x2/2!+x3/3!, y4=ex,这四条曲线的图形,说明Taylor公式说明了什么问题。6.用subplot分别在不同的坐标系下作出四条曲线:1)概率曲线2)四叶玫瑰线 =sin2;(polar函数)3)叶形线 7.作出曲面 1) 2)8. 建立一个命令M-文件:求所有的“水仙花数”,所谓“水仙花数”是指一个三位数,其各位数字的立方和等于该数本身。例如,153
3、是一个水仙花数,因为153=13+53+33。补充题目1:研究平面桁架的受力分析。要求:(1)对于简单的情况能够使用手工的方法建立各个构件的受力所满足的方程,并使用Matlab进行求解。(2)当构件的数目太多时,比如有100个,如何使用程序形成所需要的线性方程组。(3)如果干的粗细可以不同(即可以设计干的粗细),怎样设计更加节省材料。补充题目:通过查找资料完成下面的图形:(1)要求为:有坐标刻度,有坐标说明(包括希腊字母的),有inset图形,有legend。(2)计算一个弹性小球,在高度h自由下落,每次和地面接触时能量损失20%,小于1毫米时认为不再弹起。计算物体运动的轨迹,并作出模拟的动画
4、。补充题目:应用实验 手术病人门诊、手术和住院时间统计分析某医院住院部病床非常紧张,导致许多需要手术的病人因为没有住院床位而排队等候,也导致等待手术的病人越积越多。以该院眼科为例,门诊每天开放,住院部共有病床79张。该医院眼科手术主要分四大类:白内障、视网膜疾病、青光眼和外伤。表1.2中给出了2008年7月13日至2008年9月11日这段时间里各类病人的情况。医院希望通过合理安排病床、增设病床等措施提高自身服务水平。为此,首先要对当前病人门诊、手术和住院的情况进行统计分析。1) 给出各类病人从第1次手术到出院的住院天数的平均值、标准差和分布规律,并作出第1次手术到出院的住院天数频数的直方图。2
5、) 求出各类病人从门诊到入院的平均等待时间,从入院到第1次手术的平均等待时间,平均住院时间;提示:将表1.2拷贝到Excel电子表格中,利用电子表格功能增加3栏:从入院到第1次手术的等待天数,从第1次手术到出院的住院天数,从入院到出院的住院天数。利用整理好的数据完成1)、2)两要求。序号类型门诊时间入院时间第一次手术时间第二次手术时间出院时间1外伤2008-7-132008-7-142008-7-15/2008-7-192视网膜疾病2008-7-132008-7-252008-7-27/2008-8-83白内障2008-7-132008-7-252008-7-28/2008-7-314视网膜疾
6、病2008-7-132008-7-252008-7-27/2008-8-45青光眼2008-7-132008-7-252008-7-27/2008-8-56视网膜疾病2008-7-132008-7-262008-7-29/2008-8-117白内障(双眼)2008-7-132008-7-262008-7-282008-7-302008-8-28视网膜疾病2008-7-142008-7-262008-7-29/2008-8-69白内障(双眼)2008-7-142008-7-262008-7-282008-7-302008-8-110白内障2008-7-142008-7-262008-7-28/2
7、008-7-3011视网膜疾病2008-7-142008-7-262008-7-29/2008-8-812白内障(双眼)2008-7-142008-7-262008-7-282008-7-302008-8-213白内障(双眼)2008-7-142008-7-262008-7-282008-7-302008-8-214青光眼2008-7-142008-7-272008-7-29/2008-8-415视网膜疾病2008-7-142008-7-272008-7-29/2008-8-916视网膜疾病2008-7-142008-7-272008-7-29/2008-8-617视网膜疾病2008-7-15
8、2008-7-272008-7-29/2008-8-1218白内障2008-7-152008-7-272008-7-28/2008-7-3019青光眼2008-7-152008-7-272008-7-29/2008-8-520白内障(双眼)2008-7-152008-7-272008-7-282008-7-302008-8-221视网膜疾病2008-7-152008-7-272008-7-29/2008-8-922青光眼2008-7-152008-7-272008-7-29/2008-8-623白内障2008-7-152008-7-272008-7-28/2008-7-3024白内障2008-
9、7-152008-7-272008-7-28/2008-7-3025白内障(双眼)2008-7-152008-7-282008-8-42008-8-62008-8-926视网膜疾病2008-7-152008-7-282008-7-31/2008-8-1027青光眼2008-7-162008-7-282008-7-31/2008-8-728白内障2008-7-162008-7-282008-7-30/2008-8-329外伤2008-7-162008-7-172008-7-18/2008-7-2230白内障(双眼)2008-7-162008-7-282008-8-42008-8-62008-8-
10、931视网膜疾病2008-7-162008-7-282008-7-31/2008-8-1032白内障(双眼)2008-7-162008-7-282008-8-42008-8-62008-8-933视网膜疾病2008-7-162008-7-282008-7-31/2008-8-1134视网膜疾病2008-7-172008-7-282008-7-31/2008-8-1035白内障2008-7-172008-7-292008-7-30/2008-8-336视网膜疾病2008-7-172008-7-292008-7-31/2008-8-837视网膜疾病2008-7-172008-7-292008-7-
11、31/2008-8-1038白内障(双眼)2008-7-172008-7-292008-8-42008-8-62008-8-839白内障(双眼)2008-7-172008-7-292008-8-42008-8-62008-8-840外伤2008-7-172008-7-182008-7-19/2008-7-2841青光眼2008-7-172008-7-292008-7-31/2008-8-742白内障(双眼)2008-7-172008-7-292008-8-42008-8-62008-8-943白内障(双眼)2008-7-172008-7-302008-8-42008-8-62008-8-844
12、白内障(双眼)2008-7-172008-7-302008-8-42008-8-62008-8-1045白内障(双眼)2008-7-172008-7-302008-8-42008-8-62008-8-846视网膜疾病2008-7-182008-7-302008-8-1/2008-8-847白内障(双眼)2008-7-182008-7-302008-8-42008-8-62008-8-1048外伤2008-7-182008-7-192008-7-20/2008-7-2649白内障(双眼)2008-7-182008-7-302008-8-42008-8-62008-8-950白内障2008-7-1
13、82008-7-302008-8-4/2008-8-651青光眼2008-7-182008-7-302008-8-1/2008-8-852视网膜疾病2008-7-182008-7-302008-8-1/2008-8-1153外伤2008-7-182008-7-192008-7-20/2008-7-2554白内障2008-7-182008-7-312008-8-4/2008-8-755白内障(双眼)2008-7-182008-7-312008-8-42008-8-62008-8-856白内障(双眼)2008-7-182008-7-312008-8-42008-8-62008-8-957视网膜疾病
14、2008-7-182008-7-312008-8-2/2008-8-1358视网膜疾病2008-7-192008-7-312008-8-2/2008-8-1459白内障2008-7-192008-7-312008-8-4/2008-8-860白内障(双眼)2008-7-192008-8-12008-8-42008-8-62008-8-961视网膜疾病2008-7-192008-8-12008-8-3/2008-8-862视网膜疾病2008-7-192008-8-12008-8-3/2008-8-1163青光眼2008-7-192008-8-12008-8-3/2008-8-1164白内障200
15、8-7-192008-8-12008-8-4/2008-8-765外伤2008-7-192008-7-202008-7-21/2008-7-2566白内障2008-7-192008-8-22008-8-4/2008-8-867青光眼2008-7-192008-8-22008-8-5/2008-8-1668视网膜疾病2008-7-202008-8-22008-8-5/2008-8-1369白内障2008-7-202008-8-22008-8-4/2008-8-870白内障(双眼)2008-7-202008-8-22008-8-42008-8-62008-8-971白内障2008-7-202008
16、-8-22008-8-4/2008-8-772白内障2008-7-202008-8-22008-8-4/2008-8-773外伤2008-7-202008-7-212008-7-22/2008-7-2974外伤2008-7-202008-7-212008-7-22/2008-7-2875视网膜疾病2008-7-202008-8-22008-8-5/2008-8-1476视网膜疾病2008-7-202008-8-22008-8-5/2008-8-1677白内障2008-7-212008-8-32008-8-4/2008-8-678外伤2008-7-212008-7-222008-7-23/200
17、8-7-2979白内障(双眼)2008-7-212008-8-32008-8-42008-8-62008-8-980白内障(双眼)2008-7-212008-8-32008-8-42008-8-62008-8-981外伤2008-7-212008-7-222008-7-23/2008-7-2782白内障2008-7-212008-8-32008-8-4/2008-8-683白内障(双眼)2008-7-212008-8-32008-8-42008-8-62008-8-984白内障(双眼)2008-7-212008-8-32008-8-42008-8-62008-8-985白内障(双眼)2008-
18、7-212008-8-42008-8-112008-8-132008-8-1686外伤2008-7-222008-7-232008-7-24/2008-7-2887青光眼2008-7-222008-8-42008-8-7/2008-8-1688白内障2008-7-222008-8-42008-8-6/2008-8-989白内障2008-7-222008-8-42008-8-6/2008-8-1090白内障2008-7-222008-8-42008-8-6/2008-8-991视网膜疾病2008-7-222008-8-42008-8-7/2008-8-1792青光眼2008-7-232008-8
19、-52008-8-7/2008-8-1693外伤2008-7-232008-7-242008-7-25/2008-8-194白内障2008-7-232008-8-52008-8-6/2008-8-1095白内障2008-7-232008-8-52008-8-6/2008-8-996外伤2008-7-232008-7-242008-7-25/2008-7-3097白内障2008-7-232008-8-52008-8-6/2008-8-998白内障(双眼)2008-7-232008-8-62008-8-112008-8-132008-8-1799视网膜疾病2008-7-232008-8-62008
20、-8-8/2008-8-18100白内障2008-7-232008-8-62008-8-11/2008-8-13101视网膜疾病2008-7-232008-8-62008-8-8/2008-8-20102青光眼2008-7-232008-8-62008-8-8/2008-8-16103视网膜疾病2008-7-232008-8-62008-8-8/2008-8-17104视网膜疾病2008-7-232008-8-62008-8-8/2008-8-19105白内障(双眼)2008-7-232008-8-62008-8-112008-8-132008-8-15106白内障2008-7-232008-
21、8-62008-8-11/2008-8-15107视网膜疾病2008-7-232008-8-72008-8-9/2008-8-23108视网膜疾病2008-7-242008-8-72008-8-9/2008-8-19109视网膜疾病2008-7-242008-8-72008-8-9/2008-8-22110白内障2008-7-242008-8-72008-8-11/2008-8-15111青光眼2008-7-242008-8-72008-8-9/2008-8-17112视网膜疾病2008-7-242008-8-72008-8-9/2008-8-19113白内障2008-7-242008-8-7
22、2008-8-11/2008-8-14114视网膜疾病2008-7-242008-8-82008-8-10/2008-8-17115白内障2008-7-252008-8-82008-8-11/2008-8-14116视网膜疾病2008-7-252008-8-82008-8-10/2008-8-22117白内障(双眼)2008-7-252008-8-82008-8-112008-8-132008-8-15118视网膜疾病2008-7-252008-8-82008-8-10/2008-8-20119白内障(双眼)2008-7-252008-8-82008-8-112008-8-132008-8-1
23、6120青光眼2008-7-262008-8-82008-8-10/2008-8-18121白内障2008-7-262008-8-82008-8-11/2008-8-14122白内障2008-7-262008-8-82008-8-11/2008-8-14123青光眼2008-7-262008-8-82008-8-10/2008-8-17124外伤2008-7-272008-7-282008-7-29/2008-8-2125青光眼2008-7-272008-8-82008-8-10/2008-8-19126白内障2008-7-272008-8-82008-8-11/2008-8-14127白内障
24、(双眼)2008-7-272008-8-82008-8-112008-8-132008-8-15128白内障2008-7-272008-8-92008-8-11/2008-8-13129视网膜疾病2008-7-272008-8-92008-8-12/2008-8-22130外伤2008-7-272008-7-282008-7-29/2008-8-5131视网膜疾病2008-7-272008-8-92008-8-12/2008-8-23132白内障(双眼)2008-7-272008-8-92008-8-112008-8-132008-8-16133青光眼2008-7-282008-8-92008
25、-8-12/2008-8-20134视网膜疾病2008-7-282008-8-92008-8-12/2008-8-25135外伤2008-7-282008-7-292008-7-30/2008-8-6136青光眼2008-7-282008-8-92008-8-12/2008-8-19137外伤2008-7-282008-7-292008-7-30/2008-8-5138视网膜疾病2008-7-282008-8-92008-8-12/2008-8-25139青光眼2008-7-282008-8-92008-8-12/2008-8-20140视网膜疾病2008-7-282008-8-92008-8
26、-12/2008-8-24141白内障(双眼)2008-7-282008-8-92008-8-112008-8-132008-8-16142青光眼2008-7-282008-8-92008-8-12/2008-8-19143视网膜疾病2008-7-282008-8-92008-8-12/2008-8-24144视网膜疾病2008-7-282008-8-92008-8-12/2008-8-20145青光眼2008-7-292008-8-92008-8-12/2008-8-22146白内障(双眼)2008-7-292008-8-92008-8-112008-8-132008-8-16147视网膜疾病2008-7-292008-8-92008-8-12/2008-8-24148白内障2008-7-2
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