Help needed for loop

[cool17]

Hi guys can help me to correct my mistake? For my program, i asked the user for the number of terms they want to enter, it will then loop to the required times

for(j=0;j<10;j++)
{
 printf("\nEnter the number of terms:\n");
 scanf("%i",&j);
 printf("\nPlease enter expression info as follow:\n");
   {	
	double value;
	double power;
	double times;
	int pos;
	int isX;
	int KnowX;		
	int i;
	
			
	printf("-------- expression info:--------\n");
	printf("What is the single value? =");
	scanf("%f",&value);
	printf("How many numbers of xtimes? =");
	scanf("%f",&power);
                printf("What is the power value? =");
	scanf("%f",&times);

	printf("What is the sign ? =");
	scanf("%i\n",&pos);
            }
	return 0;
}

[arne]

Hi guys can help me to correct my mistake? For my program, i asked the user for the number of terms they want to enter, it will then loop to the required times

for(j=0;j<10;j++)
{
 printf("\nEnter the number of terms:\n");
 scanf("%i",&j);
 printf("\nPlease enter expression info as follow: ");
   {	
	double value;
	double power;
	double times;
	int pos;
	int isX;
	int KnowX;		
	int i;
	
			
	printf("-------- expression info:--------\n");
	printf("What is the single value? =");
	scanf("%f",&value);
	printf("How many numbers of xtimes? =");
	scanf("%f",&power);
                printf("What is the power value? =");
	scanf("%f",&times);

	printf("What is the sign ? =");
	scanf("%i\n",&pos);
            }
	return 0;
}

You change the loop variable 'j' inside the loop, which you should generally avoid with for loops as it may lead to confusion ... :-)

I propose to ask the user for the number of terms, then use the just read in value in the loop condition, like so

int num = 0; 
printf("\nEnter the number of terms:\n");
scanf("%i",&num);
for(j=0;j<num;j++)
{
   ....
}

Is that approximately what you need?

[cool17]

Yes yes that is what i need. thank you very much.

You change the loop variable 'j' inside the loop, which you should generally avoid with for loops as it may lead to confusion ... :-)

I propose to ask the user for the number of terms, then use the just read in value in the loop condition, like so

int num = 0; 
printf("\nEnter the number of terms:\n");
scanf("%i",&num);
for(j=0;j<num;j++)
{
   ....
}

Is that approximately what you need?