April 10, 2006

電腦作業




int a = 1;
int b = 3;
int c = -10;
double answer1 = (-b + Math.sqrt(b * b - 4 * a * c)) / (2 * a);
double answer2 = (-b - Math.sqrt(b * b - 4 * a * c)) / (2 * a);
System.out.println(answer1 + "," + answer2);

double answer3 = (b * b - 4 * a * c);
if (answer3 < 0) {
System.out.println("無解");
} else if (answer3 == 0) {
System.out.println("相等兩根");
} else {
System.out.println("相異兩根");
}

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