Thread: program looping with final output

Hi,
I have made the program below loop for a set number of times, in this case 5 times.
On each pass, it creates an output series of coordinates: (2, 4, 5) for example.
Then it allows you to make another series based on a new set of inputs.
I would like the program to store each set of outputs and their corresponding inputs, and display these after the loop has been run the number of times it was asked to.

I believe this must involve creating new variables for each of the outputs.
But how do I generate these (recursively?) if I allow the user to decide how many times the loop will run, and therefore how many output sets will be created?

Thanks.

Code:

#include <iostream>

int main (void) {

    
/* Variables */
	float Xreal; 
	float Yreal; 
	float Zreal;
	float Xforce;
	float Yforce;
	float Zforce;
	float Tval;
	char inZforce[64];
	
	int check_input;
	char input_buffer[160];
	
	int wloop = 5;

	
/* Prompts */
	
	/* Loop */
	while (wloop > 0)
	{
	wloop--;
	/* Input part 1 */
	printf("Real-Point values in (x, y, z) ");
	fgets(input_buffer, 160, stdin);
	check_input = sscanf(input_buffer, "(%f,%f,%f)", &Xreal, &Yreal, &Zreal);
	while (check_input !=3) {
		//Improper format
		printf("Improper format.");
		return(0);
	};
	
	
	
	/* Input part 2 */
	printf("Zforce value: ");
	fgets(inZforce, 64, stdin);
	Zforce=strtof(inZforce, NULL);
	
	
/* Computation */
	Tval=Zforce/Zreal;
	Xforce=Tval*Xreal;
	Yforce=Tval*Yreal;
	
/* Output Display */
	printf("The point: (%.3f, %.3f, %.3f) was generated with a Tvalue of: %.3f.\n",Xforce,Yforce,Zforce,Tval);
	}
	printf("Complete.\n");
	return(0);
}

Perhaps an array of Points which are structures themselves with members x and y, and these structures contain the member of your zFource inputed values?

I changed the code so that the number of repetitions would be based upon a user input, we'll call each of these "a vertex."
It seems to me that the program should then generate the appropriate number of variables which will each hold a string value containing the output information for the corresponding vertex.

I'm not sure if it possible in this manner though.
can i have the program generate say:
char vertex_1[64];
char vertex_2[64];
...etc
char vertex_n

where n represents the number of vertices generated by the number inputted by the user?

Thanks!

Code:

/* Loop */
	printf("How many vertices would you like to calculate: ");
	fgets(inwloop, 8, stdin);
	wloop=atoi(inwloop);
	printf(" \n");
	
	
	while (wloop > 0)
	{
	wloop--;

Thanks!
Two questions:
1) instead of defining DEPTH with a set value, can I make DEPTH a variable and have the user set this number?

2)Using DEPTH, how do I access each level of depth (for lack of a better term)? That is, how do I set it up such that at the end I can display the output values for each cycle?

Hi,
So I've changed the code so that there are a set number of loops, in this case 8 (determined by variable "wloop").
This means I can establish a set number of variables to each hold the value for the output of one time through the loop.

I need 8 variables:
char force-vertex_0
char force-vertex_1
char force-vertex_2
...etc
char force-vertex_7

and at the end of each loop I need the program to set a value for one of those.
But how do I get the loop to increase the vertex-variable number it is setting?
In other words, I need to do something like:
force-vertex_J=wloop - 8 (and then remove the "negative" from this difference)
so that when:
wloop =8, j=0
wloop =7, j=1
...
wloop =2, j=6
wloop =1, j=7

How do I go about this?
First, what procedure will work? and secondly, how do I drop the negative.

Below is my code.
At the end of the loop, I've tabbed out an area for the storage procedure.

Thanks for your help!

Code:

#include <iostream>

int main (void) {

    
/* Variables */
	float Xreal; 
	float Yreal; 
	float Zreal;
	float Xforce;
	float Yforce;
	float Zforce;
	float Tval;
	char inZforce[64];
	
	int check_input;
	char input_buffer[160];
	
	int wloop = 8;

	
/* Prompts */
	
/* Loop */
	while (wloop > 0)
	{
	wloop--;
	
	
	/* Get real */
	printf("Real-Point values in (x, y, z) ");
	fgets(input_buffer, 160, stdin);
	check_input = sscanf(input_buffer, "(%f,%f,%f)", &Xreal, &Yreal, &Zreal);
	while (check_input !=3) {
		//Improper format
		printf("Improper format.");
		return(0);
	};
	
	
	
	/* Get Z coordinate of force */
	printf("Zforce value: ");
	fgets(inZforce, 64, stdin);
	Zforce=strtof(inZforce, NULL);
	
	
/* Computation */
	Tval=Zforce/Zreal;
	Xforce=Tval*Xreal;
	Yforce=Tval*Yreal;
	
/* Output Display */
	printf(" \n");
	printf("Forced Point: (%.3f, %.3f, %.3f) \n",Xforce,Yforce,Zforce);
	printf("Real Point:   (%.3f, %.3f, %.3f) \n",Xreal,Yreal,Zreal);
	printf("T-value: %.3f \n",Tval);
	printf(" \n");
	
/* Save vertex value in storage */
	/* STORAGE PROCEDURE HERE */
	
	} /* End Loop */

	
/* Final Display */	
	printf("Vertex creation complete. \n");
	/* Then display Force-Vertex 0-7 coords */
	
	
	return(0);
}

By "drop the negative" I mean give the absolute value. (sorry)
J= | wloop - 8 |

J=abs(wloop-8);
forcevertex_J=("Forced: (%f,%f,%f), Real%f,%f,%f)", &Xforce, &Yforce, &Zforce, &Xreal, &Yreal, &Zreal);


something like that, so that forcevertex_0, forcevertex_1, ..., forcevertex_7 will correspond to each loop.
But I understand I can't do it in exactly that manner because forcevertex_J=... will set a value for a variable which is actually called "forcevertex_J"

Thanks

right. of course, don't need abs. just 8 - wloop. thanks
but what about making the "forcevertex_J"?

How do I bracket the loop you established:
"for(wloop = 7; wloop >= 0; wloop--)"
meaning, do I still keep the "{" after the above?

and I'm not sure if I understand how to implement the array:
within the loop, I should call:
j = 8 - wloop
forcevertex[j] = ("Forced: (%f,%f,%f), Real%f,%f,%f)", &Xforce, &Yforce, &Zforce, &Xreal, &Yreal, &Zreal);

in the variables list, do I simply add
"forcevertex0", "forcevertex1", etc. "forcevertex7"
will that work?