package?lab1;

import?java.util.*;
public?class?shiyan1?{
	static?double?Max（double?adouble?bdouble?c）
	{???double?max;
	????a=Math.abs（a）;
	????b=Math.abs（b）;
	????c=Math.abs（c）;
		if（a>=b）
		????max=a;
		else
			max=b;
		if（c>=max）
			max=c;
		return?max;
		
	}
	public?static?void?main（String[]?args）?{
		double?a?b?c?maxx1?=?0?x2?=?4?delt?p?q;
		System.out.println（“請輸入一元二次方程的系數“）;
		Scanner?scan?=?new?Scanner（System.in）;
		a?=?scan.nextDouble（）;
		b?=?scan.nextDouble（）;
		c?=?scan.nextDouble（）;
		if（a==0||c==0）{
			System.out.println（“非法輸入“）;
			return;
		}
		max=Max（abc）;
		a=a/max;
		b=b/max;
		c=c/max;
		delt?=?b?*?b?-?4?*?a?*?c;
		if?（delt?			System.out.println（“x1的實部是“?+?（-b）?/?（2?*?a）?+?“虛部是“
					+?Math.sqrt（4?*?a?*?c?-?b?*?b）?/?（2?*?a））;
			System.out.println（“x2的實部是“?+?（-b）?/?（2?*?a）?+?“虛部是“
					+?Math.sqrt（4?*?a?*?c?-?b?*?b）?/?（-2?*?a））;
		}?
		
		else?{
			if?（delt?==?0）?{

				x1?=?-b?/?（2?*?a）;
				x2?=?-b?/?（2?*?a）;
			}
			if?（delt?>?0）?{
				if?（b?					x1?=?（-b?+?Math.sqrt（delt））?/?（2?*?a）;
					x2?=?2?*?c?/?（-b?+?Math.sqrt（delt））;
				}?else?{
					x1?=?（-b?-?Math.sqrt（delt））?/?（2?*?a）;
					x2?=?2?*?c?/?（-b?-?Math.sqrt（delt））;
				}
			}
			System.out.println（x1）;
			System.out.println（x2）;
		}
	}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????301??2012-05-11?18:12??ScientificComputing\.classpath

?????文件????????395??2012-05-11?18:12??ScientificComputing\.project

?????文件????????629??2012-05-11?18:12??ScientificComputing\.settings\org.eclipse.jdt.core.prefs

?????文件???????1976??2012-05-14?16:08??ScientificComputing\bin\lab1\shiyan1.class

?????文件???????3793??2012-05-14?14:32??ScientificComputing\bin\lab2\Guass.class

?????文件???????3954??2012-05-14?14:36??ScientificComputing\bin\lab3\Hilbert.class

?????文件???????2408??2012-05-14?14:39??ScientificComputing\bin\lab4\Gauss_Seidel1.class

?????文件???????2316??2012-05-14?14:38??ScientificComputing\bin\lab4\Jacobi.class

?????文件???????2502??2012-05-14?14:40??ScientificComputing\bin\lab4\sor.class

?????文件???????3428??2012-05-14?14:45??ScientificComputing\bin\lab5\HouseHolder.class

?????文件???????1685??2012-05-14?16:03??ScientificComputing\bin\lab6\DrawLines$Lines.class

?????文件????????976??2012-05-14?16:03??ScientificComputing\bin\lab6\DrawLines.class

?????文件???????3475??2012-05-14?16:03??ScientificComputing\bin\lab6\QR.class

?????文件???????3889??2012-05-14?16:04??ScientificComputing\bin\lab7\Intervation.class

?????文件???????3550??2012-05-13?18:29??ScientificComputing\bin\lab8\Interpolation.class

?????文件???????1817??2012-05-13?18:29??ScientificComputing\bin\lab8\Lines.class

?????文件???????1872??2012-05-13?18:29??ScientificComputing\bin\lab8\Lines1.class

?????文件???????1975??2012-05-13?18:29??ScientificComputing\bin\lab8\Lines2.class

?????文件???????1357??2012-05-14?16:08??ScientificComputing\src\lab1\shiyan1.java

?????文件???????3684??2012-05-14?14:32??ScientificComputing\src\lab2\Guass.java

?????文件???????3739??2012-05-14?14:36??ScientificComputing\src\lab3\Hilbert.java

?????文件???????2323??2012-05-14?14:39??ScientificComputing\src\lab4\Gauss_Seidel1.java

?????文件???????2158??2012-05-14?14:38??ScientificComputing\src\lab4\Jacobi.java

?????文件???????2526??2012-05-14?14:40??ScientificComputing\src\lab4\sor.java

?????文件???????2745??2012-05-14?14:45??ScientificComputing\src\lab5\HouseHolder.java

?????文件???????1951??2012-05-14?16:03??ScientificComputing\src\lab6\DrawLines.java

?????文件???????2907??2012-05-14?16:03??ScientificComputing\src\lab6\QR.java

?????文件???????3783??2012-05-14?16:04??ScientificComputing\src\lab7\Intervation.java

?????文件???????8235??2012-05-13?18:29??ScientificComputing\src\lab8\Interpolation.java

?????目錄??????????0??2012-05-14?16:12??ScientificComputing\bin\lab1

............此處省略22個文件信息