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1sem/programming basics/z6/16.cpp

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+// pb_z6_16.cpp
+// Горбацевич Андрей
+#include <iostream>
+using namespace std;
+
+double f(double x) 
+{
+	return 2 * x*x - 3 * x + 1;
+}
+
+void pp(double x)
+{
+	cout.width(10);
+	cout.fill(' ');
+	cout.setf(ios_base::fixed);
+	cout.setf(ios_base::right);
+	cout << x;
+	cout.width(15);
+	cout.fill(' ');
+	cout.setf(ios_base::right);
+	cout << scientific << f(x);
+	cout << endl;
+	cout.unsetf(ios_base::scientific);
+}
+
+int main()
+{
+	double a, b, s;
+	cout << "a, b, s >>>\n"; 
+	cin >> a >> b >> s;
+	while (a <= b)
+	{
+		pp(a);
+		a += s;
+	}
+}

1sem/programming basics/z6/17.cpp

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+// pb_z6_17.cpp
+// Горбацевич Андрей
+#include <iostream>
+#include <iomanip>
+using namespace std;
+
+double inline f(double x) 
+{
+	return 2 * x*x - 3 * x + 1;
+}
+
+void pp1(double x)
+{
+	cout.width(15);
+	cout.fill(' ');
+	cout.setf(ios_base::right);
+	cout.setf(ios_base::fixed);
+	cout << setprecision(3)<<x;
+}
+
+void pp2(double x)
+{
+	cout.width(15);
+	cout.fill(' ');
+	cout.setf(ios_base::right);
+	cout << scientific << setprecision(5) << f(x);
+}
+
+int main()
+{
+	double a, b, s;
+	cout << "a, b, s >>>\n"; 
+	cin >> a >> b >> s;
+	for (double _a = a; _a <= b; _a += s)
+	{
+		pp1(_a);
+	}
+	cout << endl;
+	for (double _a = a; _a <= b; _a += s)
+	{
+		pp2(_a);
+	}
+	cout << endl;
+}

1sem/programming basics/z6/18.cpp

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+// pb_z6_18.cpp
+// Горбацевич Андрей
+#include <iostream>
+#include <cmath>
+using namespace std;
+
+double f(double);
+void plot(double, double, int);
+
+int main() {
+    double a, b, s;
+    int scale;
+    cout << "a, b, s, scale >>>";
+    cin >> a >> b >> s >> scale;
+    while (a < b) {
+        double y = f(a);
+        int v = (int)(y * scale);
+        plot(a, y, v);
+        a += s;
+    }
+}
+
+static const double PI = acos(-1);
+double f(double x) {
+    return pow(sin(PI * x), 2);
+}
+
+void plot(double x, double y, int v) {
+    for (int i = 0; i < v; ++i) {
+        cout << " ";
+    }
+    cout << "$(" << x << ", " << y << ")" << endl;
+}