You really should consider another course to take... That has to be the easiest thing they could ask you to do

...set up a loop with the menu structure asking for the values of at least two variables of IVR (IV, IR, VR) - exit when say a 'q'uit key is in input or whatever...

...and then from there jump to the calculation function(s) and output your result with the variables input... I guess you could use cases ...

___________________

"In a world of illusion you only see what you feel"

yeah it is a very simple progy..ask the user to make a choice

cin that choice...do a while loop to calulate the value of v=ir until the user cin's a q to quit for example...

pm tranceaholic.


yeah i see the overall kist of it, its just the syntax that i cant get over.


later
PSi

I don't remember Ohm's formula, but here you have the program, took 5 minutes to make.

replace the comment in the subprogram 'calc' by the correct formulas.

code:

#include 
#include 
#include 
#include 
#include 
#include 

	// Cyrax Creations
	// [email protected]
	// 
	// Ohm's law

int i, v, r, choice;

void input()
{
	system("cls");
	do
	{
		cout<<"\n\n";
		cout<<"\t1. Calculate current\n";
		cout<<"\t2. Calculate Voltage\n";
		cout<<"\t3. Calculate Restistance\n\n";
		cout<<"\t0. Quit\n\n\n";
		cout<<"\t Enter your choice => ";
		cin>>choice;
	}
	while ((choice < 0) && (choice > 3));
}

void calc()
{
	if (choice == 1) 
	{
		system("cls");
		cout<<"\n\n\n";
		cout<<"\tEnter Voltage => ";
		cin>>v;
		cout<<"\tEnter Resistance => ";
		cin>>r;
		// ENTER OHM'S FORMULA HERE
		// i = formula_here, remove double slash;
		cout<<"\n\n";
		cout<<" Current = "<< i <<".";
		cout<<"\n\n\n\n";
	}
		if (choice == 2) 
	{
		system("cls");
		cout<<"\n\n\n";
		cout<<"\tEnter Current => ";
		cin>>i;
		cout<<"\tEnter Resistance => ";
		cin>>r;
		// ENTER OHM'S FORMULA HERE
		// v = formula_here, remove double slash;
		cout<<"\n\n";
		cout<<" Voltage = "<< v <<".";
		cout<<"\n\n\n\n";
	}
		if (choice == 3) 
	{
		system("cls");
		cout<<"\n\n\n";
		cout<<"\tEnter Current => ";
		cin>>i;
		cout<<"\tEnter Voltage => ";
		cin>>v;
		// ENTER OHM'S FORMULA HERE
		// r = formula_here, remove double slash;
		cout<<"\n\n";
		cout<<" Resistance = "<< r <<".";
		cout<<"\n\n\n\n";
	}

}

void main()
{
	input();
	calc();
}

by the way the formula is V=IR

ohms law
V=I/R
I=V*R
R=I/V

I think

___________________

U = RI

___________________
man with no sig

it is V=IR and I=V/R...v is the voltage or potensial difference and I is the current and R is the resistance...ohms law satets that the voltage is directly proportional to the current intensity and the resistance hence V=IR

i agree with swamper
and cyrax u like made it mroe cmoplicated than it acctualyl is :P

___________________

quote:

Originally posted by Photo_bot_2k1 i agree with swamper and cyrax u like made it mroe cmoplicated than it acctualyl is :P

i second both of those...

all you need is a quick menu guy, the inputs, and functions to calculate the different things.. sould be less than 40 lines of code or so....

-Marc

___________________

no obstacles between my heart and my words; my lips, the great liaison to my soul.