private void ShowAnswerPage()
{
List <RealNum> exp = new List <RealNum>();
BaseEquation equ = new BaseEquation();
exp = equ.MakeEasyH1(inputBox.Text);
exp = equ.MakeEasyM1(exp);
exp = equ.MakeEasyM2(exp);
int a = (int)EquationTools.GetFrontByTimes(exp, 2);
int b = (int)EquationTools.GetFrontByTimes(exp, 1);
int c = (int)EquationTools.GetFrontByTimes(exp, 0);
int XDown = 2 * (int)a;
if (b * b - 4 * a * c < 0)
{
showInformation("Error", "b*b-4*a*c<0");
return;
}
//¡Ì
string answer = new Trans().GetX(a, b, c);
answer = answer.Replace("¡Ì", "√");
txt_AnswerTextBlock.Text = answer;
/* fraction fa = new fraction(a);
* fraction fb = new fraction(b);
* fraction fc = new fraction(c);
* fraction diat = new fraction(b * b - 4 * a * c);
* diat.numsqrt();
* fraction x1 = (-fb + diat) / (new fraction("2") * fa);
* fraction x2 = (-fb - diat) / (new fraction("2") * fa);
* txt_AnswerTextBlock.Text = "x1:" + x1.ToString() + "\n";
* txt_AnswerTextBlock.Text += "x2:" + x2.ToString();*/
}
private void btn_Count_Click(object sender, RoutedEventArgs e)
{
txt_AnswerTextBlock.Text = "";
BaseEquation equ = new BaseEquation();
if (!equ.Checker(inputBox.Text))
{
return;
}
if (inputBox.Text.Length == 0)
{
return;
}
List <RealNum> Exp = new List <RealNum>(equ.MakeEasyH1(inputBox.Text));
if (Exp[Exp.Count - 1].times == 2 && Data.localSettings.Values["RealMode"].ToString() == "on")
{
ShowAnswerPage();
return;
}
List <float> xValue = new List <float>();
xValue = equ.Getxvalue(inputBox.Text);
for (int i = 0; i < xValue.Count; i++)
{
txt_AnswerTextBlock.Text += " x" + i + "=" + xValue[i] + " ";
}
}
private void textBox1_TextChanged(object sender, TextChangedEventArgs e)
{
if (console_mode)
{
BaseEquation be = new BaseEquation(textBox1.Text);
GUIMethod = be.method;
textBoxInput.Text = ExpressionTranslate.get_GUI(be);
if (textBoxInput.Text != "")
{
textBoxInputOld = textBoxInput.Text;
}
}
}
private void btn_Count_Click(object sender, RoutedEventArgs e)
{
txt_AnswerTextBlock.Text = "";
ExpressionHandle hl = new ExpressionHandle();
List <RealNum> ListExp = new List <RealNum>();
BaseEquation eqtools = new BaseEquation();
if (!eqtools.BalanceChecker(inputBox.Text))
{
showInformation("ERROR", "表达式括号不平衡");
return;
}
ListExp = hl.MakeEasy(inputBox.Text);
string result = GetResult(ListExp);
txt_AnswerTextBlock.Text = result;
}
private void textBoxInput_TextChanged(object sender, TextChangedEventArgs e)
{
//TODO:检查输入太长或太高
if (!console_mode)
{
//为乘法匹配行数
if (GUIMethod == BaseEquation.METHOD.MUL)
{
mul_special();
}
if (human_changing)
{
int checkans = ExpressionTranslate.textGUI(textBoxInput.Text);
if (checkans != 0)
{
if (checkans == 2)
{
MessageBox.Show("GUI输入不合规范，已退回上一步\r\n请检查：\r\n某行太长，最长仅限" + ExpressionTranslate.LENTH_MAX + "字符，超长请使用控制台输入方式");
}
else if (checkans == 3)
{
MessageBox.Show("GUI输入不合规范，已退回上一步\r\n请检查：\r\n行数太多，最长仅限" + ExpressionTranslate.HEIGHT_MAX + "行，超高请使用控制台输入方式");
}
else
{
MessageBox.Show("GUI输入不合规范，已退回上一步\r\n请检查：\r\n数字和字母超过了10个\r\n插入了非法符\r\n删除了重要字符\r\n算式行数不对");
}
human_changing = false;
textBoxInput.Text = textBoxInputOld;
human_changing = true;
}
}
BaseEquation be = ExpressionTranslate.get_console(textBoxInput.Text);
if (be != null)
{
textBox1.Text = be.equation_console;
}
else
{
textBox1.Text = "";
}
textBoxInputOld = textBoxInput.Text;
}
}
public string WorkOut(string exp)
{
List <float> ret = new List <float>();
BaseEquation et = new BaseEquation();
string frontPart = CutString_front(exp);
string backPart = CutString_back(exp);
string IChar = GetOPC(exp);
string oppChar;
oppChar = GetOPPChar(IChar);
if (oppChar == "ERROR")
{
showInformation("ERROR", "不支持此类不等式");
return(oppChar);
}
List <RealNum> frontList = et.MakeEasy(frontPart);
List <RealNum> lastList = et.MakeEasy(backPart);
List <RealNum> endList;
endList = et.EquationExpHandle(frontList, lastList);
int MaxTimes = et.MaxTimes(endList);
if (MaxTimes == 1)
{
if (endList[1].front == 0)
{
ret.Add(0);
return("NO FOUND");
}
ret.Add(-endList[0].front / endList[1].front);
if (endList[endList.Count - 1].front < 0)
{
return("x" + oppChar + ret[0].ToString());
}
else
{
return("x" + IChar + ret[0].ToString());
}
}
else if (MaxTimes > 2 || MaxTimes < 1)
{
showInformation("抱歉", "由于能力问题。我们只设计了二次不等式和一次不等式.");
}
else if (MaxTimes == 2)
{
bool haveEq = false;
float[] frontNumContainer = new float[3];
#region 预处理
if (IChar[IChar.Length - 1] == '=')
{
haveEq = true;
}
for (int i = 0; i < 3; i++)
{
frontNumContainer[i] = 0;
}
foreach (var ele in endList)
{
frontNumContainer[ele.times] = ele.front;
}
float x1, x2;
float a, b, c;
a = frontNumContainer[2];
b = frontNumContainer[1];
c = frontNumContainer[0];
float Diat = (float)Math.Sqrt(b * b - 4 * a * c);
x1 = ((-b) + Diat) / (2 * a);
x2 = ((-b) - Diat) / (2 * a);
if (a < 0)
{
string op3 = IChar;
IChar = oppChar;
oppChar = op3;
a = -a;
b = -b;
c = -c;
}
if (x1 > x2)
{
float x = x1;
x1 = x2;
x2 = x;
}
#endregion
if ((b * b - 4 * a * c) < 0)
{
return("x∈∅");
}
else if ((b * b - 4 * a * c) == 0)
{
if (IChar == ">" || IChar == ">=")
{
return("x≠" + (-(b) / 2 * a).ToString());
}
else
{
return("x∈∅");
}
}
else
{
string BOp;
string SOp;
string Lk;
string Rk;
if (haveEq)
{
BOp = ">=";
SOp = "<=";
Lk = "[";
Rk = "]";
}
else
{
BOp = "＞";
SOp = "＜";
Lk = "(";
Rk = ")";
}
if (IChar == ">" || IChar == ">=")
{
return(string.Format("{{x {0} {1} or x {2} {3}}}", SOp, x1.ToString(), BOp, x2.ToString()));
}
if (IChar == "<" || IChar == "<=")
{
return(string.Format("x∈{0} {1},{2} {3}", Lk, x1.ToString(), x2.ToString(), Rk));
}
}
}
else
{
showInformation("抱歉", "由于能力问题。我们只设计了二次不等式和一次不等式.");
}
return("");
}
