37 lines
766 B
C
37 lines
766 B
C
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#include "stdafx.h"
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#include <conio.h>
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#include <math.h>
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#include <locale.h>
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#include <windows.h>
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#include <string.h>
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extern float END = 0.000001;
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double teylor(double summ, double z, int n);
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float x;
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float VAL, LASTVAL;
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long float z=1;
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long float summ=1;
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float d=1;
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int n=0;
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int main(){
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setlocale( LC_ALL,"Russian" );
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printf("Рекурсия. Ряд Тейлора. Косинус.\n");
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printf("Введите икс:");
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scanf("%f", &x);
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teylor(0,z,0);
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printf("Cos = %lf\n", d);
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getch();
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}
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double teylor(double summ, double z, int n){
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if (x==0) return 1;
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else if (fabs(z)>END){
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n+=1;
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z=(-1)*z*x*x/(2*n*(2*n-1));
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d=d+z;
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return summ=teylor(summ+d, z, n);
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}
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}
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