Python Math: Get the nth tetrahedral number from a given integer(n) value
Python Math: Exercise-84 with Solution
A tetrahedral number, or triangular pyramidal number, is a figurate number that represents a pyramid with a triangular base and three sides, called a tetrahedron. The formula for the nth tetrahedral number is represented by the 3rd rising factorial of n divided by the factorial of 3:
Example of tetrahedral numbers:
Write a Python program to get the nth tetrahedral number from a given integer(n) value.
def test(n): return (n * (n + 1) * (n + 2)) / 6 n = 1 print("\nOriginal Number:",n) print("Tetrahedral number:",test(n)) n = 2 print("\nOriginal Number:",n) print("Tetrahedral number:",test(n)) n = 6 print("\nOriginal Number:",n) print("Tetrahedral number:",test(n))
Original Number: 1 Tetrahedral number: 1.0 Original Number: 2 Tetrahedral number: 4.0 Original Number: 6 Tetrahedral number: 56.0
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