#include <stdio.h>#include <conio.h>#include <string.h>#include <math.h>

int main(){//oppgave3();//oppgave4();oppgave4Del2();

}

int teller1;double teller2;float teller3=1;float teller4=0;

float brok;float brokSum=0;

oppgave3(){int teller1;float teller3=1;float brok;float brokSum=0;

for(teller1=0; teller1<=1000; teller1++){

for(teller2=1; teller2<=teller1; teller2++){teller3=teller3*teller2;

}//printf("%f",teller3);brok=1/teller3;teller3=1;//printf("\n%f",brok);brokSum=brokSum+brok;

}printf("\n%.15f",brokSum);system("pause");

}

oppgave4(){double teller1;double nevner=1;double brok;double sumBrok=0;

int lock=1;double del;double sum;

for(teller1=0; teller1<10000000000; teller1++){ //dette gir 12 gjeldede siffer

nevner=nevner+2;brok=(1/nevner);if(lock==1){

sumBrok=sumBrok-brok;lock=0;

}

else{sumBrok=sumBrok+brok;lock=1;

}}//printf("%d",sumBrok);del=1+sumBrok;sum=4*del;printf("\n%.15f",sum);

}

oppgave4Del2(){double sum=0;double teller17=0;double del=0;double broken=0;for(teller17=1; teller17<1000000000; teller17++){

sum=sum +(1/(teller17*teller17));}printf("%.15lf",sum);

}