How do you calculate CAGR if beginning value is zero?

CAGR, or Compound Annual Growth Rate, cannot be calculated when the beginning value is zero, as this would lead to a division by zero and an undefined result. CAGR represents the rate of return over a period of time, assuming the investment grows from a starting value to an ending value. If the beginning value is zero, you would need to redefine the starting point or use an alternative measure of growth that can accommodate a zero starting value.