Ozhao 4 years ago
commit e7e9070d08

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<?xml version="1.0" encoding="UTF-8"?>
<classpath>
<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-13">
<attributes>
<attribute name="module" value="true"/>
</attributes>
</classpathentry>
<classpathentry kind="src" path="src"/>
<classpathentry kind="output" path="bin"/>
</classpath>

1
.gitignore vendored

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/bin/

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<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>Educoder</name>
<comment></comment>
<projects>
</projects>
<buildSpec>
<buildCommand>
<name>org.eclipse.jdt.core.javabuilder</name>
<arguments>
</arguments>
</buildCommand>
</buildSpec>
<natures>
<nature>org.eclipse.jdt.core.javanature</nature>
</natures>
</projectDescription>

@ -0,0 +1,14 @@
eclipse.preferences.version=1
org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
org.eclipse.jdt.core.compiler.codegen.targetPlatform=13
org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
org.eclipse.jdt.core.compiler.compliance=13
org.eclipse.jdt.core.compiler.debug.lineNumber=generate
org.eclipse.jdt.core.compiler.debug.localVariable=generate
org.eclipse.jdt.core.compiler.debug.sourceFile=generate
org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
org.eclipse.jdt.core.compiler.release=enabled
org.eclipse.jdt.core.compiler.source=13

@ -0,0 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?>
<classpath>
<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
<classpathentry kind="src" path="src"/>
<classpathentry kind="output" path="bin"/>
</classpath>

@ -0,0 +1,17 @@
<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>open</name>
<comment></comment>
<projects>
</projects>
<buildSpec>
<buildCommand>
<name>org.eclipse.jdt.core.javabuilder</name>
<arguments>
</arguments>
</buildCommand>
</buildSpec>
<natures>
<nature>org.eclipse.jdt.core.javanature</nature>
</natures>
</projectDescription>

@ -0,0 +1,11 @@
eclipse.preferences.version=1
org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
org.eclipse.jdt.core.compiler.compliance=1.8
org.eclipse.jdt.core.compiler.debug.lineNumber=generate
org.eclipse.jdt.core.compiler.debug.localVariable=generate
org.eclipse.jdt.core.compiler.debug.sourceFile=generate
org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
org.eclipse.jdt.core.compiler.source=1.8

@ -0,0 +1,9 @@
package open;
public class duishu {
public double duishu(double a,double b) {
return Math.log(a)/Math.log(a);
}
}

@ -0,0 +1,58 @@
package open;
import java.util.Scanner;
public class main {
public main() {
}
public static void main(String[] args) {
double a,c; String b;
Scanner sc = new Scanner(System.in);
a=sc.nextDouble();
b=sc.next();
if(b.equals("sin")) {
sanjiao d=new sanjiao();
System.out.println(d.sanjiao("sin", a));
}
else if(b.equals("cos")) {
sanjiao d=new sanjiao();
System.out.println(d.sanjiao("cos", a));
}
else if(b.equals("tan")) {
sanjiao d=new sanjiao();
System.out.println(d.sanjiao("tan", a));
}
else if(b.equals("^")) {
zhishu d=new zhishu();
System.out.println(d.zhishu(a));
}
else if(b.equals("log")) {
duishu d=new duishu();
c=sc.nextDouble();
System.out.println(d.duishu(a, c));
}
else if(b.equals("+")) {
sizeyunsuan d=new sizeyunsuan();
c=sc.nextDouble();
System.out.println(d.add(a, c));
}
else if(b.equals("-")) {
sizeyunsuan d=new sizeyunsuan();
c=sc.nextDouble();
System.out.println(d.subtract(a, c));
}
else if(b.equals("*")) {
sizeyunsuan d=new sizeyunsuan();
c=sc.nextDouble();
System.out.println(d.multiply(a, c));
}
else if(b.equals("/")) {
sizeyunsuan d=new sizeyunsuan();
c=sc.nextDouble();
System.out.println(d.divide(a, c));
}
else System.out.println("´íÎó");
}
}

@ -0,0 +1,16 @@
package open;
public class sanjiao {
public double sanjiao(String a,double b) {
double c=Math.toRadians(b);
if(a=="sin")
return Math.sin(c);
else if(a=="cos")
return Math.cos(c);
else if(a=="tan")
return Math.tan(c);
return 0;
}
}

@ -0,0 +1,32 @@
package open;
public class sizeyunsuan {
public double add(double add1, double add2) {
//¼Ó·¨
double result;
result = add1 + add2;
return result;
}
public double subtract(double sub1, double sub2) {
//¼õ·¨
double result;
result = sub1 - sub2;
return result;
}
public double multiply(double mul1, double mul2) {
//³Ë·¨
double result;
result = mul1 * mul2;
return result;
}
public double divide(double div1, double div2) {
//³ý·¨
double result;
result = div1 / div2;
return result;
}
}

@ -0,0 +1,11 @@
package open;
public class zhishu {
public double zhishu(double a) {
return Math.pow(Math.E,a);
}
}

@ -0,0 +1,32 @@
package ;
public class sizeyunsuan {
public double add(double add1, double add2) {
//加法
double result;
result = add1 + add2;
return result;
}
public double subtract(double sub1, double sub2) {
//减法
double result;
result = sub1 - sub2;
return result;
}
public double multiply(double mul1, double mul2) {
//乘法
double result;
result = mul1 * mul2;
return result;
}
public double divide(double div1, double div2) {
//除法
double result;
result = div1 / div2;
return result;
}
}

@ -1,22 +0,0 @@
int main()
{
double x,k=1,f=1,e,n;
double a=0;
scanf("%lf %lf",&x,&n);
if(n < 0)
printf("error");
else
{
for(int i = 1;i <= n;i++)
{
a =pow((double)x,(double)i);
k = k*i;
e = a/k;
f += e;
}
printf("%.6lf",f);
}
return 0;
}
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