2016年4月20日 · Need to add a loop to my calculator by giving the user an option to restart the calculator by putting the code in a while loop with the condition that the input from user should be, 'y' or 'Y'. ...

2015年4月3日 · Alright, I'm just starting to learn python, and have no idea where else to pose this question. I wrote this calculator and it works. a,b=input("Enter two numbers (sperated by a comma): ") operator=

2021年4月26日 · These are all the requirements for my calculator below. Each mathematic operation needs to be its own function/method: Addition - Takes up to 5 arguments, Subtraction - - Takes 3 arguments, Multiplication - Takes 4 arguments, Division - Takes 2 arguments, Log - Takes 1 argument, Raise a number to a power ex. X squared, Solve Pythagorean theorem ...

That's because Python's % performs a true modulus, which returns values on the range [0, divisor) and pairs well with floored division (towards negative infinity). C languages use the % operator for remainder operations which returns values on the range (-divisor, divisor) and pairs well with standard division (towards zero).

If you just need to compute the formula, math.factorial can be used, but is not fast for large combinations, but see math.comb below for an optimized calculation available in Python 3.8+: import math def ncr(n, r): f = math.factorial return f(n) // f(r) // f(n-r) print(ncr(4, 2)) # Output: 6

2019年10月19日 · I got to do this calculator on python 3 that must execute on loop until the user types exit.Besides, programming ahead of the user typing invalid characters, such as letters when asked to type an operator or a number.

2008年9月29日 · I am facing issues with calculating the number of days between the first date of current month and Today's date using Python? 1 Convert datetime (e.g. 2016-01-01, 2016-01-11) to integer days (e.g. 0, 11) in Python

2016年6月1日 · Python Calculator (Dividing by zero properly) Ask Question Asked 8 years, 8 months ago. Modified 7 years ago.

2018年7月31日 · Brian's answer (a custom function) is the correct and simplest thing to do in general. But if you really wanted to define a numeric type with a (non-standard) '%' operator, like desk calculators do, so that 'X % Y' means X * Y / 100.0, then from Python 2.6 onwards you can redefine the mod() operator:

2016年11月13日 · For all that is right in the world, don't use Python (as in, eval() or using the parser or whatever) to parse this kind of thing. It is a security risk, and a bad idea. It is a security risk, and a bad idea.