Python - 我的程序出错

Question

So I'm writing a python program that either sets the alarm off or doesn't, but can't seem to find my mistake for R1.

T = float(input("What is the temperature in F?"))

from math import *

e=2.71828182845904523536028747135266249775724709369995

R1 = ((33192)*e)**3583((1/T)-(1/40))

P1 = ((156300/R1) + 156,300)

P2 = ((156300/312600))

if P1 < P2:

    #print("The alarm will be sound")

else:

    #print("The alarm will not be sound")


 R1 = ((33192)*e)**3583((1/T)-(1/40))

TypeError: 'int' object is not callable

Answer 1

Python interprets parens next to an object as "try to call this object". If you want to multiply two things together, you need to explicitly tell python to multiply.

So it should be:

R1 = ((33192)*e)**3583*((1/T)-(1/40))

(added asterisk between 3583 and ((1/T)-(1/40)) )

Edit: Right, that number is too large for float

Using decimal to deal with that:

import decimal
#remove import math, that doesn't seem to be used anywhere?

e = decimal.Decimal('2.71828182845904523536028747135266249775724709369995')

T = decimal.Decimal(input("Temperature(F): "))

R1 = (33192*e)**3583*((1/T)-(1/decimal.Decimal(40)))

P1 = (156300/R1) + decimal.Decimal(156300) #removed comma here. That comma was making P1 a tuple

P2 = decimal.Decimal(156300)/decimal.Decimal(312600) #removed excess parens and coerced everything to decimal.Decimal

if P1 < P2:
    #print("The alarm will be sound")
else:
    #print("The alarm will not be sound")