include iostream include cstdlib include cmath using namespace
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參考程式碼 #include <iostream> #include <cstdlib> #include <cmath> using namespace std; int main() { int a, b, c; float x 1, x 2 , d; cout << "請輸入一元二次方程式的三個係數a, b, c:" << endl; … … … d = pow(b, 2. 0) – 4*a*c; x 1 = …………; x 2 = …………; cout << "ax 2+bx+c=0 的兩個根為:" … … ; system(" pause"); return 0; }
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