public static string EquationToLibre(string equation, int fontSize = 16)
{
int pos;
while ((pos = equation.IndexOf('/')) != -1)
{
var right = ExpressionManip.SplitEquation(equation, pos, ExpressionManip.SplitType.RightSide);
var left = ExpressionManip.SplitEquation(equation, pos, ExpressionManip.SplitType.LeftSide);
equation = equation.Remove(left.StartIndex, right.EndIndex - left.StartIndex);
equation = equation.Insert(left.StartIndex, "{" + left.Segment + "} over {" + right.Segment + "}");
}
return("size " + fontSize.ToString() + "{" + equation + "}");
}
public static string ToLatex(string expression, string fontSize = "Normal")
{
//convert fractions
int pos;
while ((pos = expression.IndexOf('/')) != -1)
{
var right = ExpressionManip.SplitEquation(expression, pos, ExpressionManip.SplitType.RightSide);
var left = ExpressionManip.SplitEquation(expression, pos, ExpressionManip.SplitType.LeftSide);
expression = expression.Remove(left.StartIndex, right.EndIndex - left.StartIndex);
expression = expression.Insert(left.StartIndex, "\\frac{" + left.Segment + "}{" + right.Segment + "}");
}
//convert math symbols
expression = expression.Replace("ρ", @"\rho ");
expression = expression.Replace("π", @"\pi ");
expression = expression.Replace("Ω", @"\Omega ");
expression = expression.Replace("δ", @"\delta ");
expression = expression.Replace("Δ", @"\Delta ");
expression = expression.Replace("α", @"\alpha ");
expression = expression.Replace("μ", @"\mu ");
expression = expression.Replace("ε", @"\epsilon ");
expression = expression.Replace("θ", @"\theta ");
expression = expression.Replace("κ", @"\kappa ");
expression = expression.Replace("σ", @"\sigma ");
expression = expression.Replace("β", @"\beta ");
expression = expression.Replace("γ", @"\gamma ");
expression = expression.Replace("η", @"\eta ");
expression = expression.Replace("λ", @"\lambda ");
expression = expression.Replace("ν", @"\nu ");
expression = expression.Replace("ξ", @"\xi ");
expression = expression.Replace("τ", @"\tau ");
expression = expression.Replace("υ", @"\upsilon ");
expression = expression.Replace("φ", @"\phi ");
expression = expression.Replace("ψ", @"\psi ");
expression = expression.Replace("ω", @"\omega ");
string prefix;
const string suffix = "}$";
//todo: enum this
switch (fontSize)
{
case "Tiny":
prefix = @"\tiny ${ ";
break;
case "Script Size":
prefix = @"\scriptsize ${ ";
break;
case "Footnote Size":
prefix = @"\footnotesize ${ ";
break;
case "Small":
prefix = @"\small ${ ";
break;
case "Normal":
prefix = @"\normalsize ${ ";
break;
case "large":
prefix = @"\large ${ ";
break;
case "Large":
prefix = @"\Large ${ ";
break;
case "LARGE":
prefix = @"\LARGE ${ ";
break;
case "huge":
prefix = @"\huge ${ ";
break;
case "Huge":
prefix = @"\Huge ${ ";
break;
default:
prefix = "${";
break;
}
return(prefix + expression + suffix);
}