add first Qt6 version of musredit, mupp, etc.

src/musredit_qt6/musredit/latex_images/internalField.tex

@@ -0,0 +1,20 @@
+\documentclass[12pt]{article}
+\pagestyle{empty}
+\begin{document}
+
+% internal field, delta-B
+\begin{displaymath}
+\alpha \cos\left(2\pi\nu t + \phi\pi/180\right) e^{-\lambda_{\rm T} t} + (1-\alpha) e^{-\lambda_{\rm L} t}
+\end{displaymath}
+
+% internal field, Gaussian broadened
+\begin{displaymath}
+\alpha \left[\cos(2\pi\nu t) -\frac{\sigma^2 t}{2\pi\nu}\sin(2\pi\nu t)\right] e^{-(\sigma t)^2/2} + (1-\alpha) e^{-(\lambda t)^\beta}
+\end{displaymath}
+
+% internal field, Lorentzian broadened
+\begin{displaymath}
+\alpha \left[\cos(2\pi\nu t) -\frac{a}{2\pi\nu}\sin(2\pi\nu t)\right] e^{-a t} + (1-\alpha) e^{-\lambda t}
+\end{displaymath}
+
+\end{document}