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Showing posts from July, 2017

Bash: Wget: Command Not Found

Answer : alternative: curl - transfer a URL . <( curl --silent https://code.headmelted.com/installers/chromebook.sh ) wget has been removed from recent versions of ChromeOS which includes what's installed on the `ASUS-Chromebook-Flip-C302CA'. You can use the curl command to download the files instead.

Can We Make Unsigned Byte In Java

Answer : The fact that primitives are signed in Java is irrelevant to how they're represented in memory / transit - a byte is merely 8 bits and whether you interpret that as a signed range or not is up to you. There is no magic flag to say "this is signed" or "this is unsigned". As primitives are signed the Java compiler will prevent you from assigning a value higher than +127 to a byte (or lower than -128). However, there's nothing to stop you downcasting an int (or short) in order to achieve this: int i = 200; // 0000 0000 0000 0000 0000 0000 1100 1000 (200) byte b = (byte) 200; // 1100 1000 (-56 by Java specification, 200 by convention) /* * Will print a negative int -56 because upcasting byte to int does * so called "sign extension" which yields those bits: * 1111 1111 1111 1111 1111 1111 1100 1000 (-56) * * But you could still choose to interpret this as +200. */ System.out.println(b); // "-56" /* * Will print a posit

Audio Player Javascript Code Example

Example 1: play audio in javascript var audio = new Audio ( 'audio_file.mp3' ) ; audio . play ( ) ; Example 2: play audio javascript var bMusic = new Audio ( 'welcome1.mp3' ) bMusic . play ( ) Example 3: javascript play audio // play audio with from html audio element : document . getElementById ( 'myAudioTagID' ) . play ( ) ; // play audio with out html audio tag var myAudio = new Audio ( 'my_great_song.mp3' ) ; myAudio . play ( ) ; Example 4: javascript play audio // play audio with from html audio element : document . getElementById ( 'myAudioTagID' ) . play ( ) ; // play audio with out html audio tag var myAudio = new Audio ( 'my_great_song.mp3' ) ; myAudio . play ( ) ; Example 5: how play audio js let myAudioElement = new Audio ( 'audio.mp3' ) ; myAudioElement . addEventListener ( "canplaythrough" , event = > { / * the audio is now playable ; play it if permissions al

5x5 Rubik's Cube World Record Code Example

Example: 1x1 rubik's cube world record 8 minuites and 59 seconds

Bootstrap 4 Button Code Example

Example 1: bootstrap 4 button <button type= "button" class= "btn btn-primary" >Primary</button> <button type= "button" class= "btn btn-secondary" >Secondary</button> <button type= "button" class= "btn btn-success" >Success</button> <button type= "button" class= "btn btn-danger" >Danger</button> <button type= "button" class= "btn btn-warning" >Warning</button> <button type= "button" class= "btn btn-info" >Info</button> <button type= "button" class= "btn btn-light" >Light</button> <button type= "button" class= "btn btn-dark" >Dark</button> <button type= "button" class= "btn btn-link" >Link</button> Example 2: btn-default class in bootstrap 4 <link rel= "stylesheet" href= &quo

Blackboard Bold I

Image
Answer : If you're free to use LuaLaTeX and the unicode-math package and its \setmathfont macro, there are quite a few math fonts to choose from that provide a "double-struck" lowercase-i character. Hopefully, one of the following eight choices will appeal to you. :-) \documentclass{article} \usepackage{unicode-math} \setmainfont{Stix Two Text} % choose the text font... % Setting up eight [8!] math fonts \setmathfont{Latin Modern Math}[version=lm] \setmathfont{Cambria Math}[version=cambria] \setmathfont{Asana Math}[version=asana] \setmathfont{Stix Two Math}[version=stix2] \setmathfont{XITS Math}[version=xits] \setmathfont{TeX Gyre Termes Math}[version=termes] \setmathfont{TeX Gyre Pagella Math}[version=pagella] \setmathfont{TeX Gyre DejaVu Math}[version=dejavu] \newcommand\blurb{$\mathbb{123}\quad\mathbb{hij}\quad e^{\phi_i\mathbb{i}}$} \begin{document} \begin{tabular}{ll} Latin Modern & \mathversion{lm} \blurb\\ Cambria & \mathversio

Can A Default Path Be Set Globally For \input{...} Akin To \graphicspath{...}?

Answer : \graphicspath comes from LaTeX's \input@path , just using the paths for graphics files. \input@path can be set independently, e.g.: \makeatletter \def\input@path{{path1/}{path2/}} \makeatother Internally package graphics stores its path of \graphicspath in \Ginput@path and locally sets \input@path to \Ginput@path , if it looks for files via \IfFileExists . Addition to \input@path The macro \input@path can be undefined (usually the default in LaTeX) or it can already contain other path entries. Therefore, \providecommand in the following code first defines the macro for the case that \input@path is undefined. Then \g@addto@macro extends the definition of \input@path . \makeatletter \providecommand*{\input@path}{} \g@addto@macro\input@path{{path1/}{path2/}}% append \makeatother Alternatively \edef can be used, which expands the definition text. The next example uses it to prepend the contents to \input@path to the old meaning of \input@path : \m

How To Get The Length Of An Array Python Code Example

Example 1: python get array length # To get the length of a Python array , use 'len()' a = arr . array ( ‘d’ , [ 1.1 , 2.1 , 3.1 ] ) len ( a ) # Output : 3 Example 2: find array length python array = [ 1 , 2 , 3 , 4 , 5 ] print ( len ( arr ) )

Bash =~ Regex And Https://regex101.com/

Answer : \d is a nonstandard way for saying "any digit". I think it comes from Perl, and a lot of other languages and utilities support Perl-compatible REs (PCRE), too. (and e.g. GNU grep 2.27 in Debian stretch supports the similar \w for word characters even in normal mode.) Bash doesn't support \d , though, so you need to explicitly use [0-9] or [[:digit:]] . Same for the non-capturing group (?:..) , use just (..) instead. This should print match : temp="eu-west 140.243.64.99 " regexp="([0-9]{1,3}\.)+([0-9]{1,3})" [[ $temp =~ $regexp ]] && echo match (:...) and \d are perl or PCRE regular expression operators (like in GNU grep -P ). bash only supports extended regular expressions as in grep -E except that for regexps passed literally as in [[ text =~ regexp-here ]] as opposed to as the result of an unquoted expansion (as in [[ text =~ $var ]] or [[ test =~ $(printf '%s\n' 'reg

O Partigiano Portami Via Meaning Code Example

Example: bella ciao lyrics E seppellire lassù in montagna O bella ciao , bella ciao , bella ciao , ciao , ciao E seppellire lassù in montagna Sotto l'ombra di un bel fior

Can I Use A Grayscale Image With The OpenGL GlTexImage2D Function?

Answer : Change it to GL_LUMINANCE. See https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glTexImage2D.xhtml in the FragmentShader, you can write: uniform sampler2D A; vec3 result = vec3(texture(A, TexCoord).r); in the cpp file,you can write: glTexImage2D( GL_TEXTURE_2D, 0, GL_RED, dicomImage->GetColumns(), dicomImage->GetRows(), 0, GL_RED, GL_UNSIGNED_BYTE, pixelArrayPtr);

Boruto Naruto Next Generations Anime Code Example

Example: boruto It is good.. you should try it

Bootstrap Card Image Left Code Example

Example: bootstrap card image left text right < div class = " card " > < div class = " row no-gutters " > < div class = " col-auto " > < img src = " //placehold.it/200 " class = " img-fluid " alt = " " > </ div > < div class = " col " > < div class = " card-block px-2 " > < h4 class = " card-title " > Title </ h4 > < p class = " card-text " > Description </ p > < a href = " # " class = " btn btn-primary " > BUTTON </ a > </ div > </ div > </ div > < div class = " card-footer w-100 text-muted " > Footer stating cats are CUTE little animals