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| (Cross-posted from [MMa.SE][1].) When we select an `Image` in the FrontEnd, the [Image Assistant Toolbar][2] appears attached under it: [![toolbar][3]][4] How can we temporarily prevent the toolbar from appearing when an `Image` is... |
| I believe there is a bug in `SelectionMove` when it is used to select a `CellGroup`. The bug is two-fold: not only `SelectionMove` fails to perform the operation, but also it doesn't return `$Failed` is it should according to the Documentation: >... |
| According to the Documentation page for [`ImageCompose`][1], it uses "standard Duff-Porter compositing operators" with the default being the "over" operator. However my experiments show that in the recent versions of *Mathematica* (up to version... |
| (Cross-posted from [Mathematica.SE][1].) I wish to share some observations concerning current limitations (bugs?) of *Mathematica*'s `"LevenbergMarquardt"` algorithm of `FindMinimum` which (as I hope) can help to improve it. I've spent much... |
| (Cross-posted from [Mathematica.SE][1]) The *Mathematica*'s Kernel and FrontEnd currently work well with Unicode file/directory paths, but some other components of the system contain long-standing bugs which are source of troubles for the users,... |
| Before *Mathematica* version 10 it was possible to change globally the `PageWidth` option used by `Put` and `PutAppend` via `SetOptions`: (* for Put *) SetOptions[OpenWrite, PageWidth -> Infinity]; (* for PutAppend *) ... |
| I have a question about processing of images with `ColorSpace -> Automatic` by *Mathematica*. First of all, `ColorSpace -> Automatic` is assumed by default when no colorspace is specified for a new `Image` object: i1 = Image[{{{.1, .3,... |
| When working on [this][1] post I [discovered ][2] that starting from *Mathematica* 10.0 the behavior of such functions as `Blur`, `GaussianFilter`, `ImageConvolve` and some others was changed. Namely, they no longer affect alpha channel of an `Image`... |
| Some time ago [Vitaliy Kaurov][1] asked an interesting [question][2] about implementing in *Mathematica* so called "torn edge" effect in context of conveying a message perfectly [formulated][3] by [Sjoerd C. de Vries][4]: "There's more of this, but... |
| When working on [this question][1] dedicated to what I believe is a significant limitation/defect of the current implementation of the `"LevenbergMarquardt"` algorithm in `FindMinimum`, I found that the same code evaluates 15 - 25 times slower in... |