实验6 Matlab数值计算实验报告.docx

Tutorial 6 实验报告实验名称：Matlab数值计算实验目的：1、 掌握数据统计与分析的方法；2、 掌握数据插值和曲线拟合的方法及其应用；3、 掌握多项式的常用运算实验内容：1. 利用randn函数生成符合正态分布的10X5随机矩阵A,进行如下操作:（1） 求A的最大元素和最小元素；（2） 求 A 的每行元素的和以及全部元素的和；（3） 分别对A的每列元素按升序、每行元素按降序排列2. 用 3次多项式方法插值计算1-100之间整数的平方根N149162536496481100平方根123456789103.某气象观测站测得某日6： 00-18： 00之间每隔2h的室内外温度（° C）如下表所示时间681012141618室内温度18.020.022.025.030.028.024.0室外温度15.019.024.028.034.032.030.0使用三次样条插值分别求出该日室内外6： 30-17： 30之间每隔2h各点的近似温度，并绘制 插值后的温度曲线4.已知lgx在［1,101］区间10个整数采样点的函数值如下表所示，x1112131415161718191101lgx01.04141.32221.49141.61281.70761.78531.85131.90851.95902.0043试求lgx的5次拟合多项式p(x)，并绘制lgx和p(x)在［1,101］区间的函数曲线。

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