public void GetCoffOfQuadraticEq()
{
Console.WriteLine("You chose the quadratic type of equation and you should enter three coefficients, a, d and c (integer or real numbers):\n" +
"ax^2+bx+c=0");
Console.WriteLine("Enter the first coefficient: ");
double a = CheckTheDouble();
Console.WriteLine("Enter the second coefficient: ");
double b = CheckTheDouble();
Console.WriteLine("Enter the third coefficient: ");
double c = CheckTheDouble();
Solving trySolve = new Solving(a, b, c);
String solving = trySolve.FindRoots();
Logg log = new Logg();
String line = "The user chose the quadratic type of equation and entered following coefficients:\r\n" +
$"a={a}, b = {b} and c = {c}\r\nThe equation: {a}x^2+{b}x+{c}=0\r\nThe result is: " + solving;
log.WriteInAFile(line);
Console.WriteLine(solving);
}
public double CheckTheDouble()
{
String str = Console.ReadLine();
int coeff;
while (!MatchDoubleRegEx(str) && !Int32.TryParse(str, out coeff))
{
Logg log = new Logg();
String line = $"The user entered wrong type of coefficient: {str}";
log.WriteInAFile(line);
Console.WriteLine("Enter the valid coefficient(integer or real number): ");
str = Console.ReadLine();
}
double coef = Double.Parse(str);
return(coef);
}
public void GetCoffOfLinearEq()
{
Console.WriteLine("You chose the linear type of equation and you should enter two coefficients, a and d (integer or real numbers):\n" +
"ax+b=0");
Console.WriteLine("Enter the first coefficient: ");
double b = CheckTheDouble();
Console.WriteLine("Enter the second coefficient: ");
double c = CheckTheDouble();
Solving trySolve = new Solving(0, b, c);
String solving = trySolve.FindRoots();
Logg log = new Logg();
String line = "The user chose the linear type of equation and entered following coefficients:\r\n" +
$"a={b} and b = {c}\r\nThe equation: {b}x+{c}=0\r\nThe result is: " + solving;
log.WriteInAFile(line);
Console.WriteLine(solving);
}