What is the math formula for stars in an inverted pyramid?
If counting rows 1 to N, the stars decrease according to the formula: 2 * (N - row) + 1.
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More FAQs in Inverted Pyramid Star Pattern Logic
Take the exact code used for a normal pyramid, and simply change the outer loop to count down from N to 1 instead of 1 to N.
If counting rows 1 to N, the leading spaces increase according to the formula: row - 1.
Trailing spaces exist on the right side of the stars, but since there are no visible characters after them, printing a newline immediately achieves the exact same visual result and saves CPU cycles.
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