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- class Ideone {
- public static void main (String[] args) {
- int N = 5;
- float a = 1;
- float b = 4;
- float alpha = 11;
- float betta = 100000;
- float x_min = alpha;
- float f_min = betta;
- for(int i = 1; i <= N; i++) {
- float xi = a + ((b-a)/(2*N))*(2*i-1);
- if(func(xi) < f_min) {
- x_min = xi;
- f_min = func(xi);
- }
- }
- System.out.println("x_min="+x_min+" f_min="+f_min);
- }
- static float func(float x) {
- return 7+x-(float)Math.pow(x,3);
- }
- }
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