Write C++ program with the instructions below (working on the 2 functions). (Ple

Question

Write C++ program with the instructions below (working on the 2 functions). (Please answer soon as it is due in a few hours, thank you so much.)

This is the code written out so far:

#include

#include

using namespace std;

struct Coord3D{

double x;

double y;

double z;

};

double length(Coord3D *p){

double sqrs=(pow(p->x,2)+pow(p->y,2)+pow(p->z,2));

return sqrt(sqrs);

}

void move(Coord3D *ppos, Coord3D *pvel, double dt){

ppos->x = (pvel->x * dt + ppos->x);

ppos->y = (pvel->y * dt + ppos->y);

ppos->z = (pvel->z * dt + ppos->z);

}

Coord3D* createCoord3D(double x, double y, double z){

//allocating memory and initializing using "new"

}

void deleteCoord3D(Coord3D *p){

//deleting the memory hold and freeing space using "delete"

}

int main() {

double x, y, z;

cout << "Enter position: ";

cin >> x >> y >> z;

Coord3D *ppos = createCoord3D(x,y,z);

  

cout << "Enter velocity: ";

cin >> x >> y >> z;

Coord3D *pvel = createCoord3D(x,y,z);

  

move(ppos, pvel, 10.0);

  

cout << "Coordinates after 10 seconds: "<< (*ppos).x << " " << (*ppos).y << " " << (*ppos).z << endl;

  

deleteCoord3D(ppos); // release memory

deleteCoord3D(pvel);

}

In the program dynamically: 3d-space.cpp , add functions that create and delete coordinate structs 7allocate memory and initialize Coord3D* createCoord3D (double x, double y, double z); /7 free memory void deleteCoord3D (Coord3D *p); A usage example int main() l double x, y, z; cout

Explanation / Answer

#include <iostream>
#include <cmath>

using namespace std;

struct Coord3D{

double x;

double y;

double z;

};

double length(Coord3D *p){

double sqrs=(pow(p->x,2)+pow(p->y,2)+pow(p->z,2));

return sqrt(sqrs);

}

void move(Coord3D *ppos, Coord3D *pvel, double dt){

ppos->x = (pvel->x * dt + ppos->x);

ppos->y = (pvel->y * dt + ppos->y);

ppos->z = (pvel->z * dt + ppos->z);

}

Coord3D* createCoord3D(double x, double y, double z){

//allocating memory and initializing using "new"
Coord3D* coordPoints = new Coord3D;
coordPoints->x = x;
coordPoints->y = y;
coordPoints->z = z;
return coordPoints;
}

void deleteCoord3D(Coord3D *p){

//deleting the memory hold and freeing space using "delete"

elete p;

}

int main() {

double x, y, z;

cout << "Enter position: ";

cin >> x >> y >> z;

Coord3D *ppos = createCoord3D(x,y,z);

  

cout << "Enter velocity: ";

cin >> x >> y >> z;

Coord3D *pvel = createCoord3D(x,y,z);

  

move(ppos, pvel, 10.0);

  

cout << "Coordinates after 10 seconds: "<< (*ppos).x << " " << (*ppos).y << " " << (*ppos).z << endl;

  

deleteCoord3D(ppos); // release memory

deleteCoord3D(pvel);

}

Output:

Enter position: 10 20 30                                                                                

Enter velocity: 5.5 -1.4 7.77                                                                           

Coordinates after 10 seconds: 65 6 107.7

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