generate sequence of numbers based on a range of values

function generateSequence(min, max, numElements = 9) {
  // Step 1: Calculate the raw step size
  let step = (max - min) / (numElements - 3); // One value below min, and one above max
  
  // Step 2: Dynamically determine the rounding factor based on the step size
  const orderOfMagnitude = Math.pow(10, Math.floor(Math.log10(step))); // Find the magnitude (e.g., 10, 100, 1000)
  
  // Step 3: Round the step to the nearest multiple of the order of magnitude
  const roundedStep = Math.round(step / orderOfMagnitude) * orderOfMagnitude;

  // Step 4: Start from a value a bit lower than the min, ensuring we have one value below min
  const startValue = Math.floor(min / roundedStep) * roundedStep - roundedStep;

  // Step 5: End at a value a bit higher than the max, ensuring we have one value above max
  const endValue = Math.ceil(max / roundedStep) * roundedStep + roundedStep;

  // Step 6: Generate the sequence with the dynamically adjusted start and end
  const sequence = Array.from({ length: numElements }, (_, i) => startValue + i * roundedStep);

  return sequence;
}

const min = 100;
const max = 200;
const result = generateSequence(min, max);
console.log(result);