nDecpai+=tmp,I+= 4);for(I = 3; (tmp= 1.0/i)>nDe" />
Invalid primary (invalid) {
Double pai, nDec, tmp
int I;
nDec = 1.0/ 100000000;
for(pai=0,I = 1; (tmp= 1.0/i)>nDecpai+=tmp,I+= 4);
for(I = 3; (tmp= 1.0/i)>nDecpai-=tmp,I+= 4);
printf("pai=%. 10f\n ",4 * pai);
}