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One elegant way to determine if a number falls within a certain range is to use Python's comparison operators. For example, if you wanted to check if a number x falls within the range [a, b], you could use the following code:

if a <= x <= b: print("x is in the range [%d, %d]" % (a, b)) else: print("x is not in the range [%d, %d]" % (a, b))

This code uses the "less than or equal to" (<=) and "greater than or equal to" (>=) operators to check if the number x is between a and b. If x is indeed in the range, the code will print "x is in the range [a, b]". If x is not in the range, the code will print "x is not in the range [a, b]".