def calculateSaleReturn(_supply, _reserveBalance, _reserveRatio, _sellAmount):
# validate input
assert(_supply != 0 and _reserveBalance != 0 and _reserveRatio > 0 and _reserveRatio <= 100 and _sellAmount <= _supply)
# special case for 0 sell amount
if (_sellAmount == 0):
return 0
baseN = safeSub(_supply, _sellAmount)
# special case if the CRR = 100
if (_reserveRatio == 100):
temp1 = safeMul(_reserveBalance, _supply)
temp2 = safeMul(_reserveBalance, baseN)
return safeSub(temp1, temp2) / _supply
# special case for selling the entire supply
if (_sellAmount == _supply):
return _reserveBalance
resN = power(_supply, baseN, 100, _reserveRatio)
temp1 = safeMul(_reserveBalance, resN)
temp2 = safeMul(_reserveBalance, FIXED_ONE)
return safeSub(temp1, temp2) / resN
def calculateSaleReturn(_supply, _reserveBalance, _reserveRatio, _sellAmount):
# validate input
assert (_supply != 0 and _reserveBalance != 0 and _reserveRatio > 0
and _reserveRatio <= 100 and _sellAmount <= _supply)
# special case for 0 sell amount
if (_sellAmount == 0):
return 0
baseN = safeSub(_supply, _sellAmount)
# special case if the CRR = 100
if (_reserveRatio == 100):
temp1 = safeMul(_reserveBalance, _supply)
temp2 = safeMul(_reserveBalance, baseN)
return safeSub(temp1, temp2) / _supply
# special case for selling the entire supply
if (_sellAmount == _supply):
return _reserveBalance
resN = power(_supply, baseN, 100, _reserveRatio)
temp1 = safeMul(_reserveBalance, resN)
temp2 = safeMul(_reserveBalance, FIXED_ONE)
result = safeSub(temp1, temp2) / resN
#From the result, we deduct the minimal increment, which is a
# function of R and precision.
return safeSub(result, _reserveBalance / 0x100000000)
def calculatePurchaseReturn(_supply, _reserveBalance, _reserveRatio,
_depositAmount):
# validate input
assert (_supply != 0 and _reserveBalance != 0 and _reserveRatio > 0
and _reserveRatio <= 100)
# special case for 0 deposit amount
if (_depositAmount == 0):
return 0
baseN = safeAdd(_depositAmount, _reserveBalance)
# special case if the CRR = 100
if (_reserveRatio == 100):
temp = safeMul(_supply, baseN) / _reserveBalance
return safeSub(temp, _supply)
resN = power(baseN, _reserveBalance, _reserveRatio, 100)
temp = safeMul(_supply, resN) / FIXED_ONE
result = safeSub(temp, _supply)
#From the result, we deduct the minimal increment, which is a
# function of S and precision.
return safeSub(result, _supply / 0x100000000)
def powerTest(_baseN, _baseD, _expN, _expD):
fixed = power(_baseN, _baseD, _expN, _expD) >> PRECISION
real = (Decimal(_baseN)/Decimal(_baseD))**(Decimal(_expN)/Decimal(_expD))
if fixed > real:
error = []
error.append('error occurred on {}^{}:'.format(Decimal(_baseN)/Decimal(_baseD),Decimal(_expN)/Decimal(_expD)))
error.append('fixed result = {}'.format(fixed))
error.append('real result = {}'.format(real))
raise BaseException('\n'.join(error))
return float(fixed / real)
def powerTest(baseN,baseD,expN,expD):
precision = calculateBestPrecision(baseN,baseD,expN,expD)
fixed = Decimal(power(baseN,baseD,expN,expD,precision))/(1<<precision)
real = (Decimal(baseN)/Decimal(baseD))**(Decimal(expN)/Decimal(expD))
if fixed > real:
error = []
error.append('error occurred on:')
error.append('baseN = {}'.format(baseN))
error.append('baseD = {}'.format(baseD))
error.append('expN = {}'.format(expN))
error.append('expD = {}'.format(expD))
error.append('fixed = {}'.format(fixed))
error.append('real = {}'.format(real))
raise BaseException('\n'.join(error))
return fixed/real
def calculatePurchaseReturn(_supply, _reserveBalance, _reserveRatio, _depositAmount):
# validate input
assert(_supply != 0 and _reserveBalance != 0 and _reserveRatio > 0 and _reserveRatio <= 100)
# special case for 0 deposit amount
if (_depositAmount == 0):
return 0
baseN = safeAdd(_depositAmount, _reserveBalance)
# special case if the CRR = 100
if (_reserveRatio == 100):
temp = safeMul(_supply, baseN) / _reserveBalance
return safeSub(temp, _supply)
resN = power(baseN, _reserveBalance, _reserveRatio, 100)
temp = safeMul(_supply, resN) / FIXED_ONE
return safeSub(temp, _supply)
display.lcd_clear()
time.sleep(3)
display.lcd_display_string(" Program ", 1)
display.lcd_display_string(" Starting...", 2)
time.sleep(10)
display.lcd_clear()
time.sleep(1)
password.checkstart()
try:
while True:
main_kp = keypad()
main_cm = camera()
main_gps = gps()
main_pw = power()
display.lcd_display_string("A)Phone B)Camera", 1)
display.lcd_display_string("C)Park D)Power", 2)
key = None
while key == None:
key = main_kp.getKey()
if (key == "A"):
time.sleep(0.4)
main_kp.getNumberPhone()
elif (key == "B"):
time.sleep(0.4)
main_cm.camera_on()
elif (key == "C"):
time.sleep(0.4)
main_gps.checkLatLng()
elif (key == "D"):