//计算一个算式不输出出错信息
public static bool Number_Compute2(String si, out Double out1)
{
out1 = 0;
if (si.Length == 0)
return false;
Formula f1;
try
{
f1 = new Formula(si, 0);
}
catch (Exception)
{
Error = "内存空间不足";
return false;
}
if (!f1.Check_Bracket())
return false;
f1.Formula_Adjust();
if (!f1.Number_Compute(out out1))
return false;
return true;
}
//带括号检查、括号替换和出错信息输出功能的多项式综合运算
public static bool Multinomial_Compute(String si, out String out1)
{
out1 = "";
if (si.Length == 0)
{
MessageBox.Show("请输入一个算式", "无法计算", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
return false;
}
Formula f;
try
{
f = new Formula(si, 0);
}
catch (Exception)
{
Error = "内存空间不足";
return false;
}
if (!f.Check_Bracket())
{
MessageBox.Show("多项式非法：\n\n" + Error, "无法计算", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
return false;
}
f.Formula_Adjust();
Double d;
if (f.Number_Compute(out d))
{
out1 = Formula.Number_Adjust(d);
return true;
}
MultinomialC c;
try
{
c = new MultinomialC(f.formula);
}
catch (Exception)
{
Error = "内存空间不足";
return false;
}
Error = null;
if (!c.Multinomial_Compute(out c))
{
if (Error == null)
MessageBox.Show("多项式非法", "无法计算", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
else
MessageBox.Show("多项式非法：\n\n" + Error, "无法计算", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
return false;
}
out1 = c.ToString();
return true;
}
//计算一个用字符串表示的算式并用消息框给出出错信息
public static bool Number_Compute(String si, int angle_manner, out Double out1)
{
out1 = 0;
if (si.Length == 0)
{
MessageBox.Show("请输入一个算式", "无法计算", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
return false;
}
Formula f1;
try
{
f1 = new Formula(si, angle_manner);
}
catch (Exception)
{
Error = "内存空间不足";
return false;
}
if (!f1.Check_Bracket())
{
MessageBox.Show("算式非法：\n\n" + Error, "无法计算", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
return false;
}
f1.Formula_Adjust();
Error = null;
if (!f1.Number_Compute(out out1))
{
if (Error == null)
MessageBox.Show("算式非法", "无法计算", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
else
MessageBox.Show("算式非法：\n\n" + Error, "无法计算", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
return false;
}
return true;
}