printing derivative

[jlynx23]

gud am...i am currently working with a project of mine which is about derivative...and i am having some problem with the printing of the derivative...
here is the block of code i used:

/* print derivative of each term */

x=30;
gotoxy(x, 15);
if(exponent!=0){
if(coefficient*exponent>=1){
printf("%d",coefficient*exponent);
x++;
}

if(exponent-1>=1){
printf("%c",variable);
x++;
if(exponent-1!=1){
printf("%d",exponent-1);
x++;
}
}
else if(exponent-1==0){
printf("%c",operator[ctr]);
x++;
}
}

else{
printf("0 %c ",operator[ctr]);
x++;
}
}



could someone help me why it always prints on the location coordinates (30, 15)? i would gladly and humbly accept any comments or suggetstions that would help me in this work...gud day...

[Laharl]

It always prints at (30,15) because you use gotoxy(x,15) after you set x to 30. If you want it to print someplace else, change that initialization.

[jlynx23]

It always prints at (30,15) because you use gotoxy(x,15) after you set x to 30. If you want it to print someplace else, change that initialization.

uhm...i want to start printing the derivative at that cooridanate...however, the cursor is not moving even if i try to change the value of x by incrementing...
can u pls tell me why it happened so?

[Laharl]

You don't call gotoxy() again, so it doesn't know to move. Just because you passed x to gotoxy() doesn't mean every change in x will bring about another call to the function to reflect the update.