MATLAB課后習(xí)題,羅建軍編

1、第一章1. 在自己的計(jì)算機(jī)上安裝matlab系統(tǒng)，調(diào)試運(yùn)算所有例題，熟悉matlab集成視窗環(huán)境的使用方法。2. 設(shè)a=1.2，b=-4.6，c=8.0，d=3.5，e=-4.0計(jì)算:3. 設(shè)x=,計(jì)算：4. 設(shè)a=5.67,b=7.811,計(jì)算：5. 計(jì)算時(shí)的值。6. 已知圓的半徑為15，求其直徑，周長(zhǎng)及面積。7. 已知某三角形的三個(gè)邊的邊長(zhǎng)分別為8.15,14.6和18.4，求該三角形的面積。提示其中：s=(a+b+c)/2,a、b、c分別為三角形三邊長(zhǎng)。第二章1. 設(shè)矩陣a= b=求 （1）2a+b (2) (3)ab (4)ba (5)ab-ba2. 設(shè)三階矩陣a,b滿(mǎn)足a-1ba=6

2、a+ba,其中：a=求矩陣b。3. 設(shè)(2e-c-1b)at=c-1，其中e是四階單位矩陣，at是a的轉(zhuǎn)置。其中：b= c=求矩陣a 。4. 設(shè)二階矩陣a、b、x，滿(mǎn)足x-2a=b-x，其中：a= b=求矩陣x。5. 求解線(xiàn)性方程組6. 求解一元六次方程的根。7. 求多項(xiàng)式被除后的結(jié)果第三章1. 求極限2. 求極限3. 求極限4. 求極限5. 已知求6. 已知求7. 求積分8. 求積分9. 求下列微積分方程的通解10.求解微分方程 第四章 1，已知向量1，2，4,0,5,10,11,21,3,1，請(qǐng)繪圖表示。 2，繪制單位圓。提示：使用axis(square)命令保證圖形的縱橫坐標(biāo)刻度比例相同

3、。 3，繪制伏安特性曲線(xiàn)：u=ri,假使r分別為1,5,10和20. 4,，某地區(qū)一年中每月的平均氣溫和平均降雨量如下表45所示，請(qǐng)畫(huà)出其圖形，要求標(biāo)注出坐標(biāo)軸,數(shù)據(jù)點(diǎn)位置，數(shù)據(jù)點(diǎn)大小等。 月份 溫度 降雨量10.24.622.33.638.72.1418.52.9524.63.0632.12.7736.82.2837.12.5928.34.31017.83.4116.42.112-3.23.7 5，已知矩陣 1 1 1 1 1 1 1 1 2 2 2 2 2 1 1 2 2 2 2 2 1 1 2 2 2 2 2 1 1 1 1 1 1 1 1請(qǐng)繪圖表示。 6，繪制z=x2+y2的三維立體圖

4、。 7，繪制由函數(shù)x2/4+y2/9+z2/16=1形成的立體圖，并通過(guò)改變觀(guān)察點(diǎn)來(lái)獲得該圖形在各個(gè)坐標(biāo)平面上的平面投影。第五章1、 使用命令文件，畫(huà)出下列分段函數(shù)所表示的曲線(xiàn)。 y = 2、 計(jì)算上述分段函數(shù)的值，要求能夠根據(jù)用戶(hù)對(duì)x值的不同輸入，程序給出相對(duì)應(yīng)的結(jié)果。3、 編程求 ，其中 。提示：結(jié)束條件可用，其中u為通項(xiàng)公式，e為滿(mǎn)足所求精度的極小值。 4、 求解雞兔同籠問(wèn)題：雞和兔子關(guān)在一個(gè)籠子里，已知共有頭36個(gè)，腳100個(gè)，求籠里關(guān)了雞兔各幾只。5、 求2999之間中同時(shí)滿(mǎn)足下列條件的自然數(shù)。 （1）該數(shù)各位數(shù)字之和為奇數(shù) （2）該數(shù)是素?cái)?shù)6、 編寫(xiě)一個(gè)判斷任意輸入的正整數(shù)是否為素

5、數(shù)的函數(shù)文件。7、 編寫(xiě)階乘函數(shù)，并調(diào)用該函數(shù)生成一個(gè)1！，. ，10！的階乘表，如下列所示： 1 1 2 2 3 6 4 24 5 120 6 720 7 5040 8 40320 9 362880 10 3628800第六章1、 利用scope（示波器）觀(guān)察source（信號(hào)源）的各種信號(hào)并畫(huà)出波形。2、 運(yùn)行并觀(guān)察matlab系統(tǒng)提供的sldemo_housecheat_script（房屋供熱系統(tǒng)）仿真演示程序。3、 利用simulink仿真兩個(gè)正弦信號(hào)相乘，即計(jì)算。4、 設(shè)計(jì)一個(gè)模擬人口變化情況的模型。 根據(jù)人口學(xué)理論，若用p（n）表示某一年的人口數(shù)目，其中n表示年份，則它與上一年的人

6、口p（n-1）、人口繁殖速率r以及新增資源所滿(mǎn)足的個(gè)體數(shù)目k之間的動(dòng)力學(xué)方程將由如下的差分方程描述： 從上面的差分方程可以看出，這個(gè)人口變化系統(tǒng)為一個(gè)非線(xiàn)性離散系統(tǒng)?，F(xiàn)在如果假設(shè)人口初始值為p（0）為10000人，人口繁殖率r為1.1，新增資源所能滿(mǎn)足的個(gè)體數(shù)目k=1 000 000，請(qǐng)建立該人口動(dòng)態(tài)變化系統(tǒng)的模型，并對(duì)0200年之間的人口變化趨勢(shì)進(jìn)行仿真。acknowledgements my deepest gratitude goes first and foremost to professor aaa , my supervisor, for her constant encoura

7、gement and guidance. she has walked me through all the stages of the writing of this thesis. without her consistent and illuminating instruction, this thesis could not havereached its present form. second, i would like to express my heartfelt gratitude to professor aaa, who led me into the world of

8、translation. i am also greatly indebted to the professors and teachers at the department of english: professor dddd, professor ssss, who have instructed and helped me a lot in the past two years. last my thanks would go to my beloved family for their loving considerations and great confidence in me

9、all through these years. i also owe my sincere gratitude to my friends and my fellow classmates who gave me their help and time in listening to me and helping me work out my problems during the difficult course of the thesis. my deepest gratitude goes first and foremost to professor aaa , my supervi

10、sor, for her constant encouragement and guidance. she has walked me through all the stages of the writing of this thesis. without her consistent and illuminating instruction, this thesis could not havereached its present form. second, i would like to express my heartfelt gratitude to professor aaa,

11、who led me into the world of translation. i am also greatly indebted to the professors and teachers at the department of english: professor dddd, professor ssss, who have instructed and helped me a lot in the past two years. last my thanks would go to my beloved family for their loving considerations and great confidence in me all through these years. i also owe my sincere g