isPowOfTwo 0 == False isPowOfTwo 1 == True isPowOfTwo 63 == False isPowOfTwo 256 == True isPowOfTwo 32769 == False Aufgabe2.reverse "abcde" == "edcba" doubleReverse "Otto" == "OttoottO" isPal "a" == True isPal "aba" == True isPal "aBBA" == False isPal "abc" == False nextFp (3,5) == (5,8) fp 6 == (8,13) fibFix 14 == 377