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January 28, 2022 17:55
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# author Jeffrey Kozik | |
import random | |
import math | |
devMode = False | |
def prin(log): | |
if(devMode): | |
print(log) | |
def addZeros(array, length): | |
for num in range(len(array), length): | |
array.insert(0, '0') | |
return array | |
def decimalNumberToBinaryArray(decimal_number): | |
binary_string = bin(decimal_number)[2:] | |
binary_array = [] | |
for char in binary_string: | |
binary_array.append(char) | |
return binary_array | |
def decimalNumbersToBinaryArrays(max_decimal_number): | |
binary_arrays = [] | |
max_decimal_number_binary_array = decimalNumberToBinaryArray(max_decimal_number) | |
binary_arrays.append(max_decimal_number_binary_array) | |
for decimal_number in range(0, max_decimal_number): | |
binary_arrays.append(addZeros(decimalNumberToBinaryArray(decimal_number), len(max_decimal_number_binary_array))) | |
prin("BINARY ARRAYS: ") | |
for binary_array in binary_arrays: | |
for digit in binary_array: | |
prin(digit) | |
prin("") | |
return binary_arrays | |
def multiplyAllCombos(array, max_decimal_number): | |
all_combos_array = [] | |
binary_arrays = decimalNumbersToBinaryArrays(max_decimal_number) | |
# print("binary_arrays", binary_arrays) | |
for count, binary_array in enumerate(binary_arrays): | |
this_result = 1 | |
total = 0 | |
for i in range(0, len(binary_array)): | |
if(binary_array[i] == "1"): | |
total += 1 | |
this_result *= array[i] | |
if(total > 1): | |
all_combos_array.append([this_result, binary_array]) | |
prin("COMBOS") | |
for combo in all_combos_array: | |
prin(combo) | |
return all_combos_array | |
def isSquare(num): | |
return math.sqrt(num).is_integer() | |
def check(array, num): | |
newArray = array[:(num + 1)] | |
for combo in multiplyAllCombos(newArray, (2**len(newArray)) - 1): | |
if(isSquare(combo[0])): | |
return num | |
def calculateN(x): | |
array = [] | |
for num in range(0, x): | |
array.append(random.randrange(1, x)) | |
prin("ARRAY") | |
for num in array: | |
prin(num) | |
# print("array", array) | |
for num in range(1, x + 1): | |
prin("TESTING: ") | |
prin(num) | |
if (check(array, num)): | |
prin("NUMMM") | |
print(num) | |
print("smoothness", Lx1overSqrt2(x)) | |
if(findSmooth): | |
findSmoothSubsequence(array, Lx1overSqrt2(x)) | |
return num | |
def findSmoothSubsequence(array, smoothness): | |
newArray = [] | |
for count,element in enumerate(array): | |
# print(count) | |
if isSmooth(smoothness, element): | |
newArray.append(element) | |
print("AMOUNT", (2**len(newArray)) - 1) | |
for combo in multiplyAllCombos(newArray, (2**len(newArray)) - 1): | |
if(isSquare(combo[0])): | |
print("combo[0]", combo[0]) | |
# binary_arrays = decimalNumbersToBinaryArrays((2**len(array)) - 1) | |
print("THIS COMB", combo[1]) | |
subsarray = [] | |
for count,c in enumerate(combo[1]): | |
if c == '1': | |
subsarray.append(newArray[count]) | |
print("subsarray", subsarray) | |
# print("THIS COMB", combo) | |
return combo | |
def calcBigN(x, numTimes): | |
n = 0 | |
for num in range(0, numTimes): | |
result = calculateN(x) | |
if(result > n): | |
n = result | |
print("EXPERIMENTAL N") | |
print(n) | |
return n | |
def Lx(x): | |
return (2.718281828 ** math.sqrt(math.log(x, 10) * math.log(math.log(x, 10), 10))) | |
def LxSqrt2(x): | |
return Lx(x) ** math.sqrt(2) | |
def Lx1overSqrt2(x): | |
return Lx(x) ** (1/math.sqrt(2)) | |
def isSmooth(s, x): | |
return largestPrimeFactor(x) <= s | |
def largestPrimeFactor(x): | |
primeFactors = primeFactor(x) | |
# print("x", x) | |
# print("primeFactors", primeFactors) | |
return primeFactors[len(primeFactors) - 1] | |
def factor(x): | |
factors_array = [] | |
for num in range(1, x + 1): | |
if((x / num).is_integer()): | |
factors_array.append(num) | |
# print(factors_array) | |
return factors_array | |
def isPrime(x): | |
return(len(factor(x)) <= 2) | |
def primeFactor(x): | |
return(primeFactorHelper(x, [])) | |
def primeFactorHelper(x, array): | |
factor_array = factor(x) | |
if(isPrime(factor_array[(len(factor_array) - 1)])): | |
return(factor_array) | |
factor_array = factor_array[:(len(factor_array) - 1)] | |
for thisFactor in factor_array: | |
if (isPrime(thisFactor) and (not thisFactor in array)): | |
array.append(thisFactor) | |
else: | |
returnedArray = primeFactorHelper(thisFactor, array) | |
for element in returnedArray: | |
if (not element in array): | |
array.append(element) | |
return array | |
findSmooth = True | |
def mainFunction(x, numTrials): | |
calcBigN(x, numTrials) | |
print("THEORETICAL N:") | |
print(LxSqrt2(x)) | |
print("this", Lx1overSqrt2(x)) | |
mainFunction(1000, 5) | |
# print(primeFactor(17)) |
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