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2024-03-08 09:29一、matlab作业 编程画图 求大神解答
不一定很准确局埋，但基本要素应该齐全了：
syms 巧侍x
f=x*sin(x);
I=int(f);
x=0:0.1:4;
[ax, h1, h2] = 孝腊吵plotyy(x,subs(f),x,subs(I),@stem,@plot);
set(h1, 'linewidth', 2)
set(h2, 'linewidth', 1.5)
axes(ax(1))
text(0.5,1.5,'\fontsize{13}\ity=xsinx')
ylabel('被积函数 \ity=xsin(x)')
axes(ax(2))
ylabel('\fontsize{13}\its=\int_0^{ x}xsinxdx')
text(2.5,3.3,'\fontsize{13}\its=\int_0^{ x}xsinxdx')
二、C语言编程作业，急！！！！
#include stdio.h
#include <string.h>
struct tel{
char name[11],num[11];
};
int main(int argc,char *argv[]){
struct tel s[50];
int n,i;
char t[]=############;
printf(Please enter n(int 猜腔0<n<51)...\n);
if(scanf(%d,&n)!=1 || n<1 || n>50){
printf(Input error, exit...\n);
return 0;
}
printf(Enter 兄野some name and tel-number(by ' ','Enter' end)...\n);
for(i=0;i<羡兆喊n;i++)
scanf(%10s%*[^0-9]%10s,s[i].name,s[i].num);
printf(------------------------\n);
for(i=0;i<n;i++)
printf(%.*s%s%.*s%s\n,12-strlen(s[i].name),t,s[i].name,12-strlen(s[i].num),t,s[i].num);
return 0;
}
运行样例：
#include<stdio.h>
#include<string.h>
struct
{
char name[32],tel[32];
}t,bks[50];
int main()
{
int i,j,len,n;
scanf(%d,&n);
for(i=0;i<n;i++)
scanf(%s %s,bks[i].name,bks[i].tel);
for(i=0;i<n-1;i++)
{
for(j=0;j<n-1-i;j++)
{
if(strcmp(bks[j].name,bks[j+1].name)>0)
{
t=bks[j];
bks[j]=bks[j+1];
bks[j+1]=t;
}
}
}
for(i=0;i<n;i++)
{
len=strlen(bks[i].name);
len=(len<=10 ? len : 10);
bks[i].name[len]='\0';
len=strlen(bks[i].tel);
len=(len<=10 ? len : 10);
bks[i].tel[len]='\0';
printf(%12s%12s\n,bks[i].name,bks[i].tel);
}
return 0;
}
三、JAVA编程作业
网上找的，你试试能用吗
public class Student implements Comparable{
public Student(String no, String name) {
this.no = no;
this.name = name;
}
public Student() {
}
public Student(String no, String name, double english, double maths,
double computer, double sum) {
this.no = no;
this.name = name;
this.english = english;
this.maths = maths;
this.computer = computer;
this.sum = sum;
}
private String no;
private String name;
private double english;
private double maths;
private double computer;
private Double sum=0.0;
public String getNo() {
return no;
}
public void setNo(String no) {
this.no = no;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public double getEnglish() {
return english;
}
public void setEnglish(double english) {
this.english = english;
sum+=english;
}
public double getMaths() {
return maths;
}
public void setMaths(double maths) {
this.maths = maths;
sum+=maths;
}
public double getComputer() {
return computer;
}
public void setComputer(double computer) {
this.computer = computer;
sum+=computer;
}
public Double getSum() {
return sum;
}
public void setSum(Double sum) {
this.sum = sum;
}
public String toString() {
return 学号：+no+姓名+name+英语+english+数学+maths+计算机+computer+总成绩+sum;
}
public int compareTo(Object o) {
return sum.compareTo(((Student)o).getSum());
}
public Double sum(){
return english+maths+computer;
}
public Double testScore(){
return sum/3;
}
}
public class StudentXW extends Student{
public StudentXW(String no, String name) {
super(no,name);
}
public StudentXW() {
super();
}
private String duty;
public String getDuty() {
return duty;
}
public void setDuty(String duty) {
this.duty = duty;
}
public Double testScore() {
return super.testScore()+3;
}
}
public class StudentBZ extends Student{
public StudentBZ(String no, String name) {
super(no,name);
}
public StudentBZ() {
super();
}
private String duty;
public String getDuty() {
return duty;
}
public void setDuty(String duty) {
this.duty = duty;
}
public Double testScore() {
return super.testScore()+5;
}
}
public class Test {
public static void main(String[] args) {
Student student1=new Student(001,1);
student1.setEnglish(60.0);
student1.setMaths(60.0);
student1.setComputer(60.0);
System.out.println(student1+测试成绩是+student1.testScore());
Student student2=new StudentXW(002,2);
student2.setEnglish(70.0);
student2.setMaths(70.0);
student2.setComputer(70.0);
System.out.println(student2+测试成绩是+student2.testScore());
Student student3=new StudentBZ(003,3);
student3.setEnglish(80.0);
student3.setMaths(80.0);
student3.setComputer(80.0);
System.out.println(student3+测试成绩是+student3.testScore());
}
}
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