Question

Create a function in python called “num_roman” that converts integers between 1 and 3999 into Roman numerals. The input will be a scalar number and it should output a string that is the Roman numeral representation of the input number. The function should give a meaningful error message if the input is less than one. The function should truncate a fractional value to an integer. Different meaningful error messages should occur if you enter a value greater than 3999 or the value is not a scalar. If no input is entered it should return the Roman numeral for 2019. For legitimate values the function should build up a string as follows where x is the input: while (x>=1000) subtract 1000 from x and concatenate ‘M’ to the string if (x>=900) subtract 900 from x and concatenate ‘CM’ to the string if (x>=500) subtract 500 from x and concatenate ‘D’ to the string if (x>=400) subtract 400 from x and concatenate ‘CD’ to the string while (x>=100) subtract 100 from x and concatenate ‘C’ to the string if (x>=90) subtract 90 from x and concatenate ‘XC’ to the string if (x>=50) subtract 50 from x and concatenate ‘L’ to the string if (x>=40) subtract 40 from x and concatenate ‘XL’ to the string while (x>=10) subtract 10 from x and concatenate ‘X’ to the string if (x>=9) subtract 9 from x and concatenate ‘IX’ to the string if (x>=5) subtract 5 from x and concatenate ‘V’ to the string if (x>=4) subtract 4 from x and concatenate ‘IV’ to the string while (x>=1) subtract 1 from x and concatenate ‘I’ to the string

Answer 1

Coding

Coding:

def int_to_Roman(num):#function for conversion to roman number here
    val = [
        1000, 900, 500, 400,
        100, 90, 50, 40,
        10, 9, 5, 4,
        1
        ]
    syb = [
            "M", "CM", "D", "CD",
            "C", "XC", "L", "XL",
            "X", "IX", "V", "IV",
            "I"
            ]#take symbol here to make it
    roman_num = ''
    i = 0
    while num > 0:
        for _ in range(num // val[i]):
            roman_num += syb[i]
            num -= val[i]
        i += 1
    return roman_num#return roman number here

while True:
    try:
        in_val=int(input("Please Enter integers between 1 and 3999 ::"))#input message here
        if(in_val>0 and in_val<4000):
            break
        else:
            print("\nPlease Make sure that value is between 1 and 3999\n")
    except:
        print("Please enter Correct value")
print("Roman Number is:"+str(int_to_Roman(in_val)))

output:

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