How to pass a structure declared locally to other functions?

Question

Programming languages

I have a program for tabulating a function at some interval. The gap is set by the start, end and tab step. Eti parameters I express one structure. The program is executed in the style of procedural programming. and here is the question. How can I declare a structure locally and then pass it to other functions. Attached is the text of the program. it is executed without a structure, and the parameters are begin, end, step. Help and indicate what and where to fix for the desired result.

#include <stdio.h>

void Task1(void);
void GettingTabulationOptions(double *begin, double *max_x, double *step);
void TabulationAccordingToTheParameters(double begin, double end, double step);
double SquareValue(double x);

void main()
{
  Task1();
}

void Task1(void)
{
  double begin,end,step;
  GettingTabulationOptions(&begin, &end, &step);
  TabulationAccordingToTheParameters(begin, end, step);
}

void GettingTabulationOptions(double *begin, double *end, double *step)
{
  printf("y=x^2\n");
  printf("begin=");
  scanf("%lf", &*(begin));
  printf("end=");
  scanf("%lf", &*(end));
  printf("step=");
  scanf("%lf", &*(step));
}

void TabulationAccordingToTheParameters(double begin, double end, double step)
{
  double x,y;
  for (x=begin; x<=end; x+=step)
  {
    y=SquareValue(x);
    printf("x=%lf\t y=%lf\n", x, y);
  }
}

double SquareValue(double x)
{
  
  return x*x;
}