void Observe()
{
if (LHS == "sin")
{
if (rexp.getExpType() == 1)
{
Processed = false;
TheMessageHandler.MessagePrinter.Print("Invalid Operation");
}
else if (rexp.getExpType() == 2)
{
Number ans = new Number();
double Ans = Math.Sin((rexp.getNumber().getNumber()) * Math.PI / 180);
if (isMultiple(180, rexp.getNumber().getNumber()))
{
ans.setNumber(0);
ans.setTag(autoNamer());
}
else
{
ans.setNumber(Ans);
ans.setTag(autoNamer());
}
if (rLHS.Contains("-"))
{
ans.setNumber(-1 * ans.getNumber());
}
solution = new Expression(ans);
}
} // end if for sin
if (LHS == "cos")
{
if (rexp.getExpType() == 1)
{
Processed = false;
TheMessageHandler.MessagePrinter.Print("Invalid Operation");
}
else if (rexp.getExpType() == 2)
{
Number ans = new Number();
double Ans = Math.Cos((rexp.getNumber().getNumber()) * Math.PI / 180);
if (isCosMultiple(90, rexp.getNumber().getNumber()))
{
Ans = 0;
}
ans.setNumber(Ans);
ans.setTag(autoNamer());
if (rLHS.Contains("-"))
{
ans.setNumber(-1 * ans.getNumber());
}
solution = new Expression(ans);
}
} // end if for cos
if (LHS == "tan")
{
if (rexp.getExpType() == 1)
{
Processed = false;
TheMessageHandler.MessagePrinter.Print("Invalid Operation");
}
else if (rexp.getExpType() == 2)
{
Number ans = new Number();
double Ans = Math.Tan((rexp.getNumber().getNumber()) * Math.PI / 180);
if (isCosMultiple(90, rexp.getNumber().getNumber()))
{
Ans = 46 * Math.Pow(45, 7986);
}
ans.setNumber(Ans);
ans.setTag(autoNamer());
if (rLHS.Contains("-"))
{
ans.setNumber(-1 * ans.getNumber());
}
solution = new Expression(ans);
}
} // end if for tan
if (LHS == "arcÇos")
{
if (rexp.getExpType() == 1)
{
Processed = false;
TheMessageHandler.MessagePrinter.Print("Invalid Operation");
}
else if (rexp.getExpType() == 2)
{
Number ans = new Number();
double Ans = Math.Acos((rexp.getNumber().getNumber()));
ans.setNumber(Ans * 180 / Math.PI);
ans.setTag(autoNamer());
if (rLHS.Contains("-"))
{
ans.setNumber(-1 * ans.getNumber());
}
solution = new Expression(ans);
}
} // end if for Acos
if (LHS == "arcSin")
{
if (rexp.getExpType() == 1)
{
Processed = false;
TheMessageHandler.MessagePrinter.Print("Invalid Operation");
}
else if (rexp.getExpType() == 2)
{
Number ans = new Number();
double Ans = Math.Asin((rexp.getNumber().getNumber()));
ans.setNumber(Ans * 180 / Math.PI);
ans.setTag(autoNamer());
solution = new Expression(ans);
}
} // end if for Asin
if (LHS == "arctan")
{
if (rexp.getExpType() == 1)
{
Processed = false;
TheMessageHandler.MessagePrinter.Print("Invalid Operation");
}
else if (rexp.getExpType() == 2)
{
Number ans = new Number();
double Ans = Math.Atan((rexp.getNumber().getNumber()));
ans.setNumber(Ans * 180 / Math.PI);
ans.setTag(autoNamer());
if (rLHS.Contains("-"))
{
ans.setNumber(-1 * ans.getNumber());
}
solution = new Expression(ans);
}
} // end if for atan
if (LHS == "sinh")
{
if (rexp.getExpType() == 1)
{
Processed = false;
TheMessageHandler.MessagePrinter.Print("Invalid Operation");
}
else if (rexp.getExpType() == 2)
{
Number ans = new Number();
double Ans = Math.Sinh((rexp.getNumber().getNumber())); // * Math.PI / 180);
ans.setNumber(Ans);
ans.setTag(autoNamer());
if (rLHS.Contains("-"))
{
ans.setNumber(-1 * ans.getNumber());
}
solution = new Expression(ans);
}
} // end if for atan
if (LHS == "cosh")
{
if (rexp.getExpType() == 1)
{
Processed = false;
TheMessageHandler.MessagePrinter.Print("Invalid Operation");
}
else if (rexp.getExpType() == 2)
{
Number ans = new Number();
double Ans = Math.Cosh((rexp.getNumber().getNumber())); // * Math.PI / 180);
ans.setNumber(Ans);
ans.setTag(autoNamer());
if (rLHS.Contains("-"))
{
ans.setNumber(-1 * ans.getNumber());
}
solution = new Expression(ans);
}
} // end if for atan
if (LHS == "tanh")
{
if (rexp.getExpType() == 1)
{
Processed = false;
TheMessageHandler.MessagePrinter.Print("Invalid Operation");
}
else if (rexp.getExpType() == 2)
{
Number ans = new Number();
double Ans = Math.Tanh((rexp.getNumber().getNumber())); // * Math.PI / 180);
ans.setNumber(Ans);
ans.setTag(autoNamer());
if (rLHS.Contains("-"))
{
ans.setNumber(-1 * ans.getNumber());
}
solution = new Expression(ans);
}
} // end if for atan
if (LHS == "sec")
{
if (rexp.getExpType() == 1)
{
Processed = false;
TheMessageHandler.MessagePrinter.Print("Invalid Operation");
}
else if (rexp.getExpType() == 2)
{
Number ans = new Number();
double Ans = 1 / (Math.Cos((rexp.getNumber().getNumber()) * Math.PI / 180));
if (isCosMultiple(90, rexp.getNumber().getNumber()))
{
Ans = 456 * Math.Pow(256, 4456);
}
ans.setNumber(Ans);
ans.setTag(autoNamer());
if (rLHS.Contains("-"))
{
ans.setNumber(-1 * ans.getNumber());
}
solution = new Expression(ans);
}
} // end if for atan
if (LHS == "cosec" || LHS == "csc")
{
if (rexp.getExpType() == 1)
{
Processed = false;
TheMessageHandler.MessagePrinter.Print("Invalid Operation");
}
else if (rexp.getExpType() == 2)
{
Number ans = new Number();
double Ans = 1 / (Math.Sin((rexp.getNumber().getNumber()) * Math.PI / 180));
if (isMultiple(180, rexp.getNumber().getNumber()))
{
Ans = 234 * Math.Pow(345, 999);
}
ans.setNumber(Ans);
ans.setTag(autoNamer());
if (rLHS.Contains("-"))
{
ans.setNumber(-1 * ans.getNumber());
}
solution = new Expression(ans);
}
} // end if for atan
if (LHS == "cot")
{
if (rexp.getExpType() == 1)
{
Processed = false;
TheMessageHandler.MessagePrinter.Print("Invalid Operation");
}
else if (rexp.getExpType() == 2)
{
Number ans = new Number();
double Ans = 1 / (Math.Tan((rexp.getNumber().getNumber()) * Math.PI / 180));
ans.setNumber(Ans);
ans.setTag(autoNamer());
if (rLHS.Contains("-"))
{
ans.setNumber(-1 * ans.getNumber());
}
solution = new Expression(ans);
}
} // end if for atan
if (LHS == "log")
{
if (rexp.getExpType() == 1)
{
Processed = false;
TheMessageHandler.MessagePrinter.Print("Invalid Operation");
}
else if (rexp.getExpType() == 2)
{
Number ans = new Number();
double Ans = Math.Log10(rexp.getNumber().getNumber());
ans.setNumber(Ans);
ans.setTag(autoNamer());
if (rLHS.Contains("-"))
{
ans.setNumber(-1 * ans.getNumber());
}
solution = new Expression(ans);
}
} // end if for atan
if (LHS == "ln")
{
if (rexp.getExpType() == 1)
{
Processed = false;
TheMessageHandler.MessagePrinter.Print("Invalid Operation");
}
else if (rexp.getExpType() == 2)
{
Number ans = new Number();
double Ans = Math.Log(rexp.getNumber().getNumber());
ans.setNumber(Ans);
ans.setTag(autoNamer());
if (rLHS.Contains("-"))
{
ans.setNumber(-1 * ans.getNumber());
}
solution = new Expression(ans);
}
} // end if for atan
if (LHS == "rref")
{
if (rexp.getExpType() == 2)
{
Processed = false;
TheMessageHandler.MessagePrinter.Print("Invalid Operation");
}
else if (rexp.getExpType() == 1)
{
Matrix mat = new Matrix(rexp.getMatrix());
mat.GaussJordan();
mat.setTag(autoNamer());
if (rLHS.Contains("-"))
{
mat = mat * -1;
}
solution = new Expression(mat);
}
}
if (LHS == "transp")
{
if (rexp.getExpType() == 2)
{
Processed = false;
TheMessageHandler.MessagePrinter.Print("Invalid Operation");
}
else if (rexp.getExpType() == 1)
{
Matrix mat = new Matrix(rexp.getMatrix());
mat = mat.getTranspose();
mat.setTag(autoNamer());
if (rLHS.Contains("-"))
{
mat = mat * -1;
}
solution = new Expression(mat);
}
}
if (LHS == "inv")
{
if (rexp.getExpType() == 2)
{
Processed = false;
TheMessageHandler.MessagePrinter.Print("Invalid Operation");
}
else if (rexp.getExpType() == 1)
{
Matrix mat = new Matrix(rexp.getMatrix());
if (mat.getRows() == mat.getColumns())
{
double det = mat.getdetreminant(mat);
if (det != 0)
{
mat = mat.Inverse1(mat);
mat.setTag(autoNamer());
if (rLHS.Contains("-"))
{
mat = mat * -1;
}
solution = new Expression(mat);
}
else
{
TheMessageHandler.MessagePrinter.Print("Determinant is zero. Inverse does not exist");
Processed = false;
}
}
else
{
TheMessageHandler.MessagePrinter.Print("Invalid Matrix");
Processed = false;
}
}
}
if (LHS == "ref")
{
if (rexp.getExpType() == 2)
{
Processed = false;
TheMessageHandler.MessagePrinter.Print("Invalid Operation");
}
else if (rexp.getExpType() == 1)
{
Matrix mat = new Matrix(rexp.getMatrix());
mat.GaussElimination();
mat.setTag(autoNamer());
if (rLHS.Contains("-"))
{
mat = mat * -1;
}
solution = new Expression(mat);
}
}
if (LHS == "det")
{
if (rexp.getExpType() == 2)
{
Processed = false;
TheMessageHandler.MessagePrinter.Print("Invalid Operation");
}
else if (rexp.getExpType() == 1)
{
Matrix mat = new Matrix(rexp.getMatrix());
if (mat.getColumns() == mat.getRows())
{
double ans = mat.getdetreminant(mat);
Number Ans = new Number();
Ans.setNumber(ans);
Ans.setTag(autoNamer());
if (rLHS.Contains("-"))
{
Ans.setNumber(-1 * Ans.getNumber());
}
solution = new Expression(Ans);
}
else
{
Processed = false;
TheMessageHandler.MessagePrinter.Print("Not a square Matrix");
}
}
}
if (LHS == "adj")
{
if (rexp.getExpType() == 2)
{
Processed = false;
TheMessageHandler.MessagePrinter.Print("Invalid Operation");
}
else if (rexp.getExpType() == 1)
{
Matrix mat = new Matrix(rexp.getMatrix());
if (mat.getColumns() == mat.getRows())
{
mat = mat.getAdjoint();
mat.setTag(autoNamer());
if (rLHS.Contains("-"))
{
mat = -1 * mat;
}
solution = new Expression(mat);
}
else
{
Processed = false;
TheMessageHandler.MessagePrinter.Print("Matrix is not square");
}
}
}
if (LHS == "identity" || LHS == "matIdentity")
{
if (rexp.getExpType() == 1)
{
Processed = false;
TheMessageHandler.MessagePrinter.Print("Invalid arguments");
}
else if (rexp.getExpType() == 2)
{
double size = rexp.getNumber().getNumber();
Matrix iden = new Matrix((int)size, (int)size);
iden.Identity();
iden.setTag(autoNamer());
if (rLHS.Contains("-"))
{
iden = iden * -1;
}
solution = new Expression(iden);
}
}
if (LHS == "round")
{
if (rexp.getExpType() == 1)
{
Processed = false;
TheMessageHandler.MessagePrinter.Print("Invalid Argument");
}
else
{
double num = rexp.getNumber().getNumber();
if (RHS.Contains("-"))
{
num = -1 * num;
}
num = Math.Round(num);
Number ans = new Number();
ans.setNumber(num);
ans.setTag(autoNamer());
if (rLHS.Contains("-"))
{
ans.setNumber(-1 * ans.getNumber());
}
solution = new Expression(ans);
}
}
if (LHS == "abs")
{
if (rexp.getExpType() == 1)
{
Processed = false;
TheMessageHandler.MessagePrinter.Print("Invalid Argument");
}
else
{
double num = rexp.getNumber().getNumber();
if (RHS.Contains("-"))
{
num = -1 * num;
}
num = Math.Abs(num);
Number ans = new Number();
ans.setNumber(num);
ans.setTag(autoNamer());
if (rLHS.Contains("-"))
{
ans.setNumber(-1 * ans.getNumber());
}
solution = new Expression(ans);
}
}
if (LHS == "ceil")
{
if (rexp.getExpType() == 1)
{
Processed = false;
TheMessageHandler.MessagePrinter.Print("Invalid Argument");
}
else
{
double num = rexp.getNumber().getNumber();
if (RHS.Contains("-"))
{
num = -1 * num;
}
num = Math.Ceiling(num);
Number ans = new Number();
ans.setNumber(num);
ans.setTag(autoNamer());
if (rLHS.Contains("-"))
{
ans.setNumber(-1 * ans.getNumber());
}
solution = new Expression(ans);
}
}
if (LHS == "floor")
{
if (rexp.getExpType() == 1)
{
Processed = false;
TheMessageHandler.MessagePrinter.Print("Invalid Argument");
}
else
{
double num = rexp.getNumber().getNumber();
if (RHS.Contains("-"))
{
num = -1 * num;
}
num = Math.Floor(num);
Number ans = new Number();
ans.setNumber(num);
ans.setTag(autoNamer());
if (rLHS.Contains("-"))
{
ans.setNumber(-1 * ans.getNumber());
}
solution = new Expression(ans);
}
}
if (LHS == "√")
{
if (rexp.getExpType() == 1)
{
Processed = false;
TheMessageHandler.MessagePrinter.Print("Invalid Arguments");
}
else
{
double num = rexp.getNumber().getNumber();
if (RHS.Contains("-"))
{
num = -1 * num;
}
num = Math.Sqrt(num);
Number ans = new Number();
ans.setNumber(num);
ans.setTag(autoNamer());
if (rLHS.Contains("-"))
{
ans.setNumber(-1 * ans.getNumber());
}
solution = new Expression(ans);
}
}
if (LHS == "rank")
{
if (rexp.getExpType() == 2)
{
Processed = false;
TheMessageHandler.MessagePrinter.Print("Invalid Arguments");
}
else
{
Matrix mat = new Matrix(rexp.getMatrix());
double rank = mat.rank(mat);
Number theRank = new Number();
theRank.setNumber(rank);
theRank.setTag(autoNamer());
if (rLHS.Contains("-"))
{
theRank.setNumber(-1 * theRank.getNumber());
}
solution = new Expression(theRank);
}
}
if (LHS == "magic")
{
if (rexp.getExpType() == 1)
{
Processed = false;
TheMessageHandler.MessagePrinter.Print("Invalid Arguments");
}
else
{
Matrix mat = new Matrix();
int size = (int)(rexp.getNumber().getNumber());
mat = mat.magic(size);
mat.setTag(autoNamer());
if (rLHS.Contains("-"))
{
mat = mat * -1;
}
solution = new Expression(mat);
}
}
} //end observer
