Binary >> << Decimal

[Arrexel]

I've been bored lately, writing some codes that may be useful at times(e.g., factorial, permutation calc, etc.). Here is a simple program that converts from either binary to decimal or decimal to binary.

Code: Select all

print "1) Decimal -> Binary\n2) Binary -> Decimal"
usersel = int(raw_input("Please enter your selection: "))

if usersel == 1:
    finbin = ""
    numbin = float(raw_input("Enter the base 10 number: "))
    numbinb = numbin
    while numbin > 1:
        if numbin % 2 == 0:
            finbin = "0" + finbin
            numbin = numbin / 2
        else:
            finbin = "1" + finbin
            numbin = numbin / 2 - 0.5
    finbin = "1" + finbin
    print int(numbinb),"in binary is",finbin

elif usersel == 2:
    binnum = raw_input("Enter the base 2 number: ")
    findec = int((binnum),2)
    print binnum,"in decimal is",findec


[YayPython]

This is cool! I might use this for math class...thanks. I will download when I get a chance.