Today I took a test missed 3 out of 30. That means I scored 9 out of 10 right. It’s not bad (not as good as David Baird though). My radical program is pretty neat (it works too). Here are a couple of math programs.

Script started on Thu Feb 24 11:28:12 2000 [cbarnes@ais c++stuff]$ cat quadratic1.cpp #include <iostream.h> #include <math.h> #include <stdlib.h> double a, b, c, x1, x2, imag; int getInput(); int calc(); int main() { getInput(); calc(); return 0; } int getInput() { system("clear"); cout << "Ax^2 + Bx + C = 0" << endl; cout << "A?"; cin >> a; cout << "B?"; cin >> b; cout << "C?"; cin >> c; } int calc() { double root; if (4 * a * c > b * b) { imag = 1; root = -1 * (b * b - 4 * a * c); } else root = b * b - 4 * a * c; x1 = -b + sqrt(root) / (2 * a); x2 = -b - sqrt(root) / (2 * a); if (imag == 0) cout << endl << x1 << endl << x2 << endl; if (imag == 1) cout << endl << x1 << "i" << endl << x2 << "i" << endl; } [cbarnes@ais c++stuff]$ g++ quadratic1.cpp [cbarnes@ais c++stuff]$ a.out Ax^2 + Bx + C = 0 A?1 B?-2 C?1 2 2 [cbarnes@ais c++stuff]$ a.out Ax^2 + Bx + C = 0 A?1 B?2 C?2 -1i -3i [cbarnes@ais c++stuff]$ cat radical.cpp #include <iostream.h> #include <math.h> unsigned long int Orig; unsigned long int Number; unsigned long int Div = 3; unsigned long int LastNum = 0; unsigned long int Inside = 1; unsigned long int Outside = 1; getInput() { unsigned long int Ipt; cout << "Enter a positive integer" << endl; cin >> Ipt; return Ipt; } int main() { Orig = getInput(); cout << "The Square root of " << Orig << " is :" << endl; Number = Orig; if (Div >= (sqrt(Number)+1)) { cout << Orig; return 0; } while (Number != 1) { while (!(Number -percent 2)) { Inside *= 2; if (LastNum == 2) { Outside *= 2; LastNum = 1; Inside /= 4; } else LastNum = 2; Number /= 2; } while (!(Number -percent Div)) { Inside *= Div; if (LastNum == Div) { Outside *= Div; LastNum = 1; Inside /= Div * Div; } else LastNum = Div; Number /= Div; } Div = Div + 2; } cout << Outside << " Square Roots of " << Inside; cout << endl; } [cbarnes@ais c++stuff]$ g++ radical.cpp [cbarnes@ais c++stuff]$ a.out Enter a positive integer 32 The Square root of 32 is : 4 Square Roots of 2 [cbarnes@ais c++stuff]$ exit Script done on Thu Feb 24 11:29:55 2000