/*•.•°•.•*•.•°•.•*•.•°•.•*•.•°•.•*\ programmed by: __ __ ___ _ _ _ __ _ ®© | \ / |/ \| |_| | / \ | \ | | | |\V/| | O | _ |/ Δ \| |\\| | |_| V |_|\___/|_| |_|_/ \_|_| \__| ALL RYTS RESERVED \*•.•°•.•*•.•°•.•*•.•°•.•*•.•°•.•*/ #include using namespace std; /* * PLEASE ENTER x's VALUE IN DEGREES * * fyi: * sin( 0°)=0.000 * sin(30°)=0.500 * sin(45°)=0.707 * sin(60°)=0.866 * sin(90°)=1.000 */ int main() { int sign = -1; double sum = 0, x, p, y; cout << "Enter the value of x : "; cin >> x; //now x is in degrees if (not cin) { cout << "\nTaking default value " << "for x,\n" << "let x = 30 deg"; x = 30; } cout << x << " deg" << endl; //⬇️converting x into radians y = x*(3.14159/*π*//180); cout << "\nexpansion:\n sin(" << x << " deg" << ") ="; for(int i = 1; i <= 15; i+=2) { p = 1; auto fact = 1; for(int j = 1; j <= i; j++) { p *= y; fact *= j; } sign *= -1; sum += (sign*p)/fact; if (sign == -1) cout << "\n -((" << x << " deg" << ")^(" << i << "))/" << i << "!"; else cout << "\n +((" << x << " deg" << ")^(" << i<< "))/" << i << "!"; } cout << "...\n\nsin(" << x << " deg" << ") = "; cout.setf(ios::fixed); cout.setf(ios::showpoint); cout << setprecision(3) << sum; cout << "\n\n..dont forget to do an" << "upvote :)"; return 0; }

sine series expansion