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Best ways to teach a beginner to program? [closed]
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You could try using Alice. It's a 3D program designed for use in introductory programming classes.
The two biggest obstacles for new programmers are often:
syntax errors
motivation (writing something meaningful and fun rather than contrived)
Alice uses a...
Is log(n!) = Θ(n·log(n))?
...gic that happens between step 7 and step 8... :-(
– Z3d4s
Oct 31 '19 at 16:15
3
@Z3d4s The argume...
How do you prevent install of “devDependencies” NPM modules for Node.js (package.json)?
... asking how NOT to install devDependencies.
– musicin3d
Nov 7 '16 at 0:01
3
you are partially cor...
Why are quaternions used for rotations?
... Can use just use 2 vectors (6 floats) to totally represent a 3D orientation, 3rd vector is just a cross away. An advantage matrices have is that they are already in a form that's ready to use for many applications. Euler and Quats both require packing (from matrix) and unpacking (to ma...
How do I apply a perspective transform to a UIView?
... Ben said, you'll need to work with the UIView's layer, using a CATransform3D to perform the layer's rotation. The trick to get perspective working, as described here, is to directly access one of the matrix cells of the CATransform3D (m34). Matrix math has never been my thing, so I can't explain ...
Can I replace groups in Java regex?
...with "!!!" what was matched the 4th time by the group 2
// input: a1b2c3d4e5
// output: a1b2c3d!!!e5
System.out.println(replaceGroup("([a-z])(\\d)", "a1b2c3d4e5", 2, 4, "!!!"));
}
Check online demo here.
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How to understand Locality Sensitive Hashing?
... python here which is using cosine similarity.
https://gist.github.com/94a3d425009be0f94751
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JavaScript + Unicode regexes
...A\u0800-\u0815\u081A\u0824\u0828\u0840-\u0858\u08A0-\u08B4\u0904-\u0939\u093D\u0950\u0958-\u0961\u0971-\u0980\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BD\u09CE\u09DC\u09DD\u09DF-\u09E1\u09F0\u09F1\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0...
Undoing a 'git push'
... the approaches suggested here:
prompt> git revert 35f6af6f77f116ef922e3d75bc80a4a466f92650
[master 71738a9] Revert "Issue #482 - Fixed bug."
4 files changed, 30 insertions(+), 42 deletions(-)
prompt> git status
# On branch master
# Your branch is ahead of 'origin/master' by 1 commit.
#
noth...
HTML5 Canvas vs. SVG vs. div
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This was created using (non-nested) DIVs and CSS 3D transforms, so I'd say DIVs are not slow at all: youtube.com/watch?v=fzBC20B5dsk
– Erik Kaplun
Dec 6 '16 at 10:18
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