Math & Science ⇒ pgfplots | Conditions on functions

[cgnieder]

I'm not sure I understand... you're not talking about the absolute, are you?

Code: Select all

\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage{pgfplots}

\begin{document}

\begin{tikzpicture}
 \begin{axis}[mark=none]
   \addplot[red,samples=200,domain=-2*pi:2*pi]   { (sin(deg(x)))^2 } ;
   \addplot[green,samples=200,domain=-2*pi:2*pi] { sin(deg(x))*(abs(sin(deg(x)))) } ;
 \end{axis}
\end{tikzpicture}

\end{document}

Regards

[LaTeX Beginner]

Mmmm, no... I want to take only the positive part of the sin(x) function (sin(x)>0), and operate that with the sin(x) function. In your code, it would be like that (however it doesn't runs):

Code: Select all

\addplot[green,samples=200,domain=-2*pi:2*pi] { sin(deg(x))*(sin(deg(x))>0) } ;

I don't know how to express the condition sin(deg(x))>0... Do you know what I'm saying?