QtiPlot update
Version 0.7.7 of QtiPlot, an Origin-like scientific plotting and data analysis application, has been released. The new version features improved main menu behaviour, "improved data analysis by adding: convolution/deconvolution, correlation, FFT from tables", and several bug fixes for 2D plots. Downloads here (sources free, binaries require a 15-euro donation). A few screenshots are on the KDE Apps page.