/*
#include <LiquidCrystal.h>
#include <math.h>

// Initialize the library with the numbers of the interface pins
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

double calculateY(double x) {
  if (x == 0.5) {
    return NAN; // Explicitly return NaN if x = 0.5 to handle the division by zero case
  }
  
  double sineValue = sin(x - 0.5);
  if (sineValue == 0) {
    return NAN; // Additional safety check for sine value being zero
  }
  
  double term1 = 56 * (pow(x, 3) / sineValue);
  double term2 = sqrt(1 / x);
  return term1 - term2;
}

void setup() {
  lcd.begin(16, 2); // Set up the LCD's number of columns and rows
  Serial.begin(9600); // Initialize serial communication at 9600 bps
  
  // Display the initial information on the LCD
  lcd.setCursor(0, 0);
  lcd.print("y=56*(x^3/sin(");
  delay(2000); // Wait for 2 seconds
  
  lcd.setCursor(0, 1);
  lcd.print("x-0.5))-sqrt(1/x)");
  delay(3000); // Wait for 3 seconds

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Range: 0.1-0.6");
  lcd.setCursor(0, 1);
  lcd.print("Step: 0.05");
  delay(3000); // Wait for 3 seconds
  
  double x;
  double step = 0.05;
  double minX = 0.1;
  double maxX = 0.6;
  double y;
  double maxY = -INFINITY;
  double minY = INFINITY;
  double maxY_x = 0;
  double minY_x = 0;
  
  for (x = minX; x <= maxX; x += step) {
    y = calculateY(x);
    lcd.clear();
    if (isnan(y)) {
      lcd.setCursor(0, 0);
      lcd.print("x=");
      lcd.print(x, 5); // Print x with 2 decimal places
      lcd.setCursor(0, 1);
      lcd.print("y=undefined");
    } else {
      lcd.setCursor(0, 0);
      lcd.print("x=");
      lcd.print(x, 2); // Print x with 2 decimal places
      lcd.setCursor(0, 1);
      lcd.print("y=");
      lcd.print(y, 2); // Print y with 2 decimal places
      
      // Update max and min y values
      if (y > maxY) {
        maxY = y;
        maxY_x = x;
      }
      if (y < minY) {
        minY = y;
        minY_x = x;
      }
    }
    delay(3000); // Wait for 3 seconds before showing the next value
  }
  
  // Display maximum y value
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Max y=");
  lcd.print(maxY, 2);
  lcd.setCursor(0, 1);
  lcd.print("at x=");
  lcd.print(maxY_x, 2);
  delay(5000); // Wait for 5 seconds
  
  // Display minimum y value
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Min y=");
  lcd.print(minY, 2);
  lcd.setCursor(0, 1);
  lcd.print("at x=");
  lcd.print(minY_x, 2);
  delay(5000); // Wait for 5 seconds
}

void loop() {
  // Nothing to do here
}
*/