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#include <stdio.h> #include <math.h> int fact(int x) { if (x == 0) return 1; return x * fact(x - 1); } int main(void){ double x = 2, sum = 0, e = 0.1, truesumm; int k =0; truesumm = (exp(x)-exp(-x))/2; printf("True summ =\t%f\n", truesumm); while ((sum-truesumm)<e){ k=k+1; sum=sum+(pow(x,(2*k-1))/fact(2*k-1)); } printf("Summ of array =\t%f\n", sum); printf("Numbers of iteration =\t%d\n",k); return 0; }
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