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Re: Roman Numerals (Python) 15 Years Ago by woooee … arabic = 0 for n in range(0, len(roman)-1): this_char = roman[n] next_char = roman[n+1] if (this_char in roman_to_decimal) and \ (… break if converted: ## add last roman numeral arabic += roman_to_decimal[roman[len(roman)-1]] print "\nThe roman numeral", roman, "is equal to"… Re: roman numeral calculator problems 17 Years Ago by robotnixon …; [*]int convertToDecimal(string&) [*]{ [*] [*] char roman[20]; [*] int length = strlen(roman); [*] int number = 0; [*] int counter =…operation; [*]cout << "Enter a roman expression." << endl; [*]cin&…;< endl; [*]cout << "Enter a roman expression." << endl; [*]} [*] return 0;… Roman Numeral to Arabic Converter 16 Years Ago by Straightone … most coding is from Arabic to roman but i need from Roman to Arabic. [CODE=Python]from string… 500 "M" == 1000 roman = upper(raw_input("Enter the roman numeral to convert to arabic: "))…== 1000 if roman[0] > roman[1]: arabic = roman[0] + roman[1] print "The roman numeral",roman, "Is … Re: roman numeral calculator problems 17 Years Ago by Lerner … convertToDecimal(char * roman); int main() { char roman[10]; cin >> roman; int num = convertToDecimal(roman); } int convertToDecimal(char * roman) { int length = strlen(roman); int number… Roman numer rules validating 15 Years Ago by moods125 …<SIZE; x++) { if(findIt(roman[x]) < (findIt(roman[x+])) integerValue-=findIt(roman[x]); else integerValue+=findIt(roman[x]); } return integerValue; } /////////////////////////////////////////////////////////////////////////////// bool isValidRoman… roman numeral calculator problems 17 Years Ago by robotnixon … with at least two functions (decimal->roman, roman->decimal). I started by designing three … [*]int sum; [*]int solution; [*]int result; [*]int convertToDecimal(string roman) [*]{ [*] char romanNum[100]; [*] [*] cin >> romanNum… operation; [*]cout << "Enter a roman expression." << endl; [*]cin>&… Re: Roman Numeral to Arabic Converter 16 Years Ago by GrimJack Do not forget that anywhere in the string that if a numeral is smaller than the one that comes next, it is subtracted from the the one that comes next: [code]# if roman[0] >= roman[1]: # arabic = roman[0] + roman[1] Else arabic = roman[1] - roman[0][/code] Or something like that. Re: Roman Numerals to Arabic Numbers and Vice Versa 14 Years Ago by ibthevivin …; break; default: throw new std::out_of_range( "Not a valid Roman numeral!" ); break; } } } int getArabic() { return m_arabic; }…quot;; std::string roman; cin >> roman; try { RomanNumeral rn( roman ); cout << "Roman Numeral: " << roman <<… Roman to Integer and back conversion - "illegal call of non-static member function" 13 Years Ago by Griff0527 …a function "romanToDecimal" to convert Roman numerals into its equivalent decimal number. 3)…//Function to convert decimal numbers to Roman numerals //Postcondition: outputs Roman numeral equivilents of the decimal input…[10]; cout << "Please enter a Roman Numeral: "; //Prompt user cin >> roman_num… Re: roman numeral calculator problems 17 Years Ago by robotnixon …]# int convertToDecimal(string&) # { # char roman[20]; Try int convertToDecimal(char roman[20]) Or better yet, make roman your std::string variable. By…;); int sum; int main () { cout << "Enter a roman numeral: "; convertToDecimal(sum); cout << "The decimal… Re: Roman Numeral to Arabic Converter 16 Years Ago by shadwickman … need to call it by saying [code=python] roman = raw_input("Enter the roman numeral to convert to arabic: ").upper() [/code… Re: roman numeral calculator problems 17 Years Ago by Salem # int convertToDecimal(string&) # { # char roman[20]; Try int convertToDecimal(char roman[20]) Or better yet, make roman your std::string variable. By leaving the parameter unnamed, you're passing a value, but totally ignoring it. Do you have a debugger? If so, now is the time to get used to using it. roman numerals 17 Years Ago by mikky05v …to help ease the program’s complexity: 1. The following Roman numerals, with their Arabic equivalents, must be handled: I…M – 1000 2. The Middle-Ages extension of the Roman numeral system which intended to shorten notations (such as replacing…zero, and it does not have to work with Roman numerals larger than 1,000. so what would … Re: Roman Numeral to Arabic Converter 16 Years Ago by GrimJack Just being my pedantic self, you are changing inputted Roman Numerals to Hindi numbers- the Arabs borrowed the numbers from India (in Arabic they are known as 'Indian numbers' - arqa-m [B]hindi[/B]yyah) Re: Roman Numeral to Arabic Converter 16 Years Ago by Straightone …;837487]Just being my pedantic self, you are changing inputted Roman Numerals to Hindi numbers- the Arabs borrowed the numbers from… Roman Numeral to Decimal Converter 16 Years Ago by gretty … converter but I am having trouble doing it from roman to decimal. How do you pull a string apart letter …;iostream> using namespace std; int numeral_converter(int a); void roman(int a, int b, int c, int d); int main…; << one << endl; roman(one, ten, hund, tho); return a; } void roman(int a, int b, int c, int… Re: roman numeral calculator problems 17 Years Ago by robotnixon I changed this: [inlinecode] int convertToDecimal(string&) { char roman[20]; int length = strlen(roman); [/inlinecode] My output is in the correct format but there's no answer. Re: roman numeral calculator problems 17 Years Ago by Lerner …. Remove all mention to romanNum by replacing every appearance to roman in convertToDecimal(), or rename the variable passed to convertToDecimal() from… roman to romanNum. Between line 33 and 34 of the original … Re: Roman numer rules validating 15 Years Ago by Lerner line 43: you need some way to stop the loop. using a line like: while(!valid); should do it. line 84 should be: return true; else how are you going to indicate that all char in the input are valid char for a roman numeral? Re: roman numeral calculator problems 17 Years Ago by Lerner Intinalize sum to zero in convertToDecimal() before you try to add something to it. You never use the values passed to convertToDecimal() in the form of roman. Instead, you ask for additional input in the form of romanNum. Re: roman numeral calculator problems 17 Years Ago by robotnixon … use the values passed to convertToDecimal() in the form of roman. Instead, you ask for additional input in the form of… Roman Numerals to Arabic Numbers and Vice Versa 14 Years Ago by ibthevivin … a program that will convert Roman numerals to Arabic numbers or Arabic numbers to Roman numerals. Your program should prompt…of conversion they would like to perform, Roman to Arabic or Arabic to Roman, and allow them to convert as many… they would like." Here's a quick refresher for roman numerals: M = 1000 D = 500 C = 100 L = … Re: Roman to Integer and back conversion - "illegal call of non-static member function" 13 Years Ago by Griff0527 Thanks, that worked DeanMSands3. It appears that my logic for Roman to decimal is skewed. MMCI comes out with 100 instead of 2101. Likewise MCMXI comes out to 1900 instead of 1911. I'm looking at my logic now, but a second (or third) set of eyes would be much appreciated. Re: Roman to Integer and back conversion - "illegal call of non-static member function" 13 Years Ago by Griff0527 …() { char roman_num[10]; cout << "Please enter a Roman Numeral: "; //Prompt user cin >> roman_num; //Receive input… Re: Roman to Integer and back conversion - "illegal call of non-static member function" 13 Years Ago by Lerner To me roman numerals are read left to right so: MCMXLIV = 1000 + (1000 − 100) + (50 − 10) + (5 − 1) = 1944 which is an example I found on Wikipedia. Re: Roman to Integer and back conversion - "illegal call of non-static member function" 13 Years Ago by raptr_dflo Oh, and at some point you should add some error checking, because even if you get your existing logic correct, "IC" isn't a valid roman numeral. Re: Roman numerals help 13 Years Ago by darkagn … something like: [code] int temp = inputValue; string roman = String.Empty; while (temp > 999) { roman += "M"; temp -= 1000; } while (temp…;C"; temp -= 100; } while (temp > 89) { roman += "XC"; temp -= 10; } // and so on... [/code] There … Re: roman numerals 17 Years Ago by mikky05v …=0; string roman_numeral; cout<<"Please enter a Roman Numeral (Note that IV is 6 not 4)"<… Re: roman numerals 17 Years Ago by mikky05v …=0; string roman_numeral; cout<<"Please enter a Roman Numeral (Note that IV is 6 not 4)"<… Re: roman numerals 17 Years Ago by Sky Diploma … main() { string roman_numeral; cout<<"Please enter a Roman Numeral (Note that IV is 6 not 4)"<…