static void Main()
{
int[] a = { 11, 0, 5, 6 };
int[] b = { 5, 7 };
int[] sum = Polynomials.Sum(a, b);
Polynomials.Print(sum);
}
static void Main()
{
int[] a = { 11, 0, 5, 6 };
int[] b = { 5, 7 };
int[] subtraction = Polynomials.Subtraction(a, b);
Polynomials.Print(subtraction);
int[] multiplication = Polynomials.Multiplication(a, b);
Polynomials.Print(multiplication);
}
public static void Main()
{
Polynomials P = new Polynomials();
string userInput = null;
char userOutput;
do
{
Console.WriteLine("Please select an action. You may: \n 'C'reate a polynomial and insert it into the list. \n 'A'dd two polynomials and insert the sum into the list. " +
"\n 'M'ultiply two polynomials and insert the product into the list. \n 'D'elete a polynomial. \n 'E'valuate a polynomial. \n 'Q'uit the program.");
Console.WriteLine("\n Current Polynomials: ");
P.Print();
Console.WriteLine();
Console.Write("Enter action. >> ");
userInput = Console.ReadLine();
while (!char.TryParse(userInput, out userOutput))
{
Console.Write("Please enter a single character. >> ");
userInput = Console.ReadLine();
}
switch (Char.ToUpper(userOutput))
{
case 'C':
{
P = CreatePolynomial(P);
P.Print();
Console.WriteLine();
break;
}
case 'A':
{
AddPolynomials(P);
Console.WriteLine();
break;
}
case 'M':
{
MultiplyPolynomials(P);
Console.WriteLine();
break;
}
case 'D':
{
DeletePolynomial(P);
Console.WriteLine();
break;
}
case 'E':
{
EvaluatePolynomial(P);
Console.WriteLine();
break;
}
case 'Q':
{
Console.WriteLine("Exiting Program.");
Console.ReadLine();
break;
}
default:
{
Console.WriteLine("Error. Please input a valid command.");
Console.WriteLine();
break;
}
}
} while (char.ToUpper(userOutput) != 'Q');
}
// Main program method - initialized with start of a program
public static void Main()
{
// Variables for operation letter codes
const char CODE_CREATE = 'C';
const char CODE_ADD = 'A';
const char CODE_MULTIPLY = 'M';
const char CODE_DELETE = 'D';
const char CODE_EVALUATE = 'E';
const char CODE_QUIT = 'Q';
// Variable to store the user's input
char userInput;
// List of polynomials
Polynomials list = new Polynomials();
// Program introduction
System.Console.WriteLine("Hello! And welcome to UPLM! (univariable polynomial list manipulator)\n");
System.Console.WriteLine("There are several commands available for you,");
System.Console.WriteLine("and they are accessible by letter codes.\n");
// Letter codes declaration
System.Console.WriteLine("Use '{0}' to create and add a polynomial to the list", CODE_CREATE);
System.Console.WriteLine("Use '{0}' to add two polynomials in the list and insert the result into the list",
CODE_ADD);
System.Console.WriteLine("Use '{0}' to multiply two polynomials in the list and insert the result into the list",
CODE_MULTIPLY);
System.Console.WriteLine("Use '{0}' to delete a polynomial at a certain position in the list", CODE_DELETE);
System.Console.WriteLine("Use '{0}' to evaluate a certain polynomial with a given x", CODE_EVALUATE);
System.Console.WriteLine("Use '{0}' to quit the program\n", CODE_QUIT);
// Prompt the user to input the first command
System.Console.WriteLine("Please, choose the first command:");
userInput = GetUserInputChar(System.Console.ReadLine());
// Start the loop
while (userInput != 'Q')
{
// Output the empty line for easy-to-read formatting
System.Console.WriteLine();
// Start a method corresponding to the operation
switch (userInput)
{
case CODE_CREATE:
Create(list);
break;
case CODE_ADD:
AddPolynomials(list);
break;
case CODE_MULTIPLY:
MultiplyPolynomials(list);
break;
case CODE_DELETE:
DeletePolynomial(list);
break;
case CODE_EVALUATE:
EvaluatePolynomial(list);
break;
default:
System.Console.WriteLine("Wrong code provided");
break;
}
// Output the current list
System.Console.WriteLine("\nCurrently, the list is:");
list.Print();
System.Console.WriteLine("\n");
// Prompt the user to input the next command
System.Console.WriteLine("Please, choose the next command:");
userInput = char.ToUpper(GetUserInputChar(System.Console.ReadLine()));
}
System.Console.WriteLine("Thank you for using our program!");
System.Console.WriteLine("Press 'Enter' to close the program");
System.Console.ReadLine();
}
static void Main(string[] args)
{
try
{
//Creates a new list, S, of Polynomials
Polynomials S = new Polynomials();
//Data members
double coef;
int count = 0;
//Data members for deciding what the program will do the make sure it's a number
int pick;
int exp;
//Will continue the program until the user inputs "6"
do
{
//Detailing all the options the user has
Console.WriteLine("Welcome to the Polynomial program, please read all the options before entering an input");
Console.WriteLine("Here is the list of polynomials");
S.Print(); // prints the list so the user knows what is already in the list
Console.WriteLine("Press 1 if you would like to insert a polynomial into the list printed above");
Console.WriteLine("Press 2 if you would like to add two polynomials together and insert them into the list");
Console.WriteLine("Press 3 if you would like to multiply two polynomials together and insert it into the list");
Console.WriteLine("Press 4 if you would like to delete any polynomials from the list above");
Console.WriteLine("Press 5 if you would like to evaluate a polynomial from the list, provided that you enter x");
Console.WriteLine("Press 6 if you would like to close this console");
pick = Convert.ToInt32(Console.ReadLine());
//If the user tries to enter a letter instead of a number, it gets an error
if (pick < 1 || pick > 6)
{
Console.WriteLine("Sorry, you must pick an option between 1 and 6");
Console.WriteLine("");
}
//If the user picks the 1st option, it does this
if (pick == 1)
{
//creates a new list to keep track of what the user has entered
Polynomial b = new Polynomial();
int hMany;
int i = 0;
//asks the user how many terms they want to enter
Console.WriteLine("How many terms do you want to add to?");
hMany = Convert.ToInt32(Console.ReadLine());
//Asks the user what they want the coefficient and exponent to be until i reaches hMany
while (i < hMany)
{
Console.WriteLine("Please enter the coefficient");
coef = Convert.ToDouble(Console.ReadLine());
Console.WriteLine("Please enther the exponent");
exp = Convert.ToInt32(Console.ReadLine());
//takes the coefficient and exponents, adds them to the term
Term t = new Term(coef, exp);
b.AddTerm(t);
i++;
count++;
}
//Inserts the newly added polynomials into S
S.Insert(b);
}
//Tells the program what to do if the user enters 2
else if (pick == 2)
{
//Checks to see if there are any polynomials to add together in the first place
if (count < 2)
{
Console.WriteLine("There are no polynomials in the list");
Console.WriteLine("");
}
//Asks the user which polynomails he wants to use, then it adds them together and inserts it in to the list
else
{
Console.WriteLine("Here is the list of Polynomials");
S.Print();
int Ret1, Ret2;
Console.WriteLine("Please enter the index of the first polynomial you would like to use ");
Ret1 = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Please enter the index of the second polynomial you would like to use");
Ret2 = Convert.ToInt32(Console.ReadLine());
Polynomial answer = S.Retrieve(Ret1) + S.Retrieve(Ret2);
Console.WriteLine("Your new polynomial is:");
answer.Print();
Console.WriteLine("");
S.Insert(answer);
}
}
//Tells the program what to do if the user wants to multiply
else if (pick == 3)
{
//Checks to see if there are polynomials to multiply together
if (count < 2)
{
Console.WriteLine("There are no polynomials in the list");
Console.WriteLine("");
}
//Asks the user for which polynomials it wants to multiply together and then inserts it
else
{
Console.WriteLine("Here is the list of Polynomials");
S.Print();
int Mul1, Mul2;
Console.WriteLine("Please enter the index of the first polynomial you would like to use ");
Mul1 = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Please enter the index of the second polynomial you would like to use");
Mul2 = Convert.ToInt32(Console.ReadLine());
//inserts the newly multiplied together polynomial
Polynomial result = S.Retrieve(Mul1) * S.Retrieve(Mul2);
Console.WriteLine("Your new polynomial is:");
result.Print();
Console.WriteLine("");
S.Insert(result);
}
}
//Tells the program what to do if the user wants to delete polynomials
else if (pick == 4)
{
//checks to see there are any polynomials to add together
if (count == 0)
{
Console.WriteLine("There are no polynomials in the list");
Console.WriteLine("");
}
//Asks the user which polynomial they want to delete and then deletes it
else
{
int del;
Console.WriteLine("Here is the list of Polynomials");
S.Print();
Console.WriteLine("Please enter the index of the polynomial you would like to delete");
del = Convert.ToInt32(Console.ReadLine());
S.Delete(del);
Console.WriteLine("Deleted");
Console.WriteLine("");
}
}
//Tells the program what to do if the user wants to evaluate a term
else if (pick == 5)
{
//Checks to see if there are any polynomials to evaluate
if (count == 0)
{
Console.WriteLine("There are no polynomials in the list");
Console.WriteLine();
}
//Asks the user which polynomial they want to evaluate, what value for x and then answers them
else
{
int Ret;
double x;
Console.WriteLine("Please enter the index of the polynomial you would like to evaluate");
Ret = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Please enter the x value you would like to use");
x = Convert.ToInt32(Console.ReadLine());
double answer;
answer = S.Retrieve(Ret).Evaluate(x);
Console.WriteLine("Your answer is:");
Console.WriteLine(answer);
Console.WriteLine("");
}
}
} while (pick != 6);
}
catch (ArgumentException e) { Console.WriteLine(e.Message); }
}
