maple | A better front-end boilerplate
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maple Examples and Code Snippets
Lines of Code : 10
License : No License
Copyconst HSLToRGB = (h, s, l) => {
s /= 100;
l /= 100;
const k = n => (n + h / 30) % 12;
const a = s * Math.min(l, 1 - l);
const f = n =>
l - a * Math.max(-1, Math.min(k(n) - 3, Math.min(9 - k(n), 1)));
return [255 * f(0), 255 * from datetime import timedelta, date
def daterange(start, end):
return [start + timedelta(n) for n in range(int((end - start).days))]
from datetime import date
daterange(date(2020, 10, 1), date(2020, 10, 5))
# [date(2020, 10, 1), date(2020, 10, Community Discussions
Trending Discussions on maple
QUESTION
I want to extract the name and d tags for each food item from the xml file.
I thought about making all the d tags to become children of name tag. And then looping over the contents of name. But not sure how to go about that or if there are other more efficient ways. Open to other solutions. I have some code but not there yet. Thank you!
...ANSWER
Answered 2021-Jun-09 at 05:49your code as some naming error. you don't have to use findall every time like name is only one time . action is not define but you are still appending it , this code generate your desire output of df
QUESTION
I am working on a project in which I need to post a new Course to my API. I tested this with POSTMAN and API works just fine, however when I try to post data using react fetch data is corrupted. While sending single strings like dishName: "pizza" works just fine and is shown in database I cannot manage to send an array of objects. I tried to do it in many ways like:
...ANSWER
Answered 2021-May-27 at 21:44You are setting the ingredients state as a string, so you are basically 'stringify' a string which will result in JSON SyntaxError. If you want to send an array that way you must specify the array bracket [ and ] in order to make it a valid array.
To solve it just change:
QUESTION
I am trying to learn jQuery, and all of the stuff I read makes perfect sense, but then I try to do something simple and it fails. Okay, so I have a basic image gallery, four rows, four columns, and I want to be able to swap out CSS classes when they move their cursor over the image. Below is the relevant HTML that I am trying to target (I can put the whole file document up if necessary, it's just very long): Specifically, I want to select all images with the class galImg and attach a hover event handler, and from that handler, I want to swap out CSS classes. Here is the jQuery I am using for that:
ANSWER
Answered 2021-May-26 at 19:05There's a few issues in your code. The main one is that the second argument in a jQuery object is the context. This is effectively the same as find(). As such you're looking for an img within the img contained in this - which is why it does not work. Remove that second argument.
Secondly, don't remove the .galImg class from the elements. You selected the img by that. If you're expecting it to have an effect on the elements you select then you need a delegated event handler, but I won't go in to that here as there is no point removing the .galImg class in the first instance.
Thirdly, the addClass(), removeClass(), toggleClass() etc. methods do not require the . prefix on classes. You simply provide them as strings, delimited with spaces if necessary.
Lastly you can combine the separate addClass() and removeClass() calls by using toggleClass() alone.
For future reference you should note that jQuery has excellent documentation. I'd suggest browsing it to familiarise yourself with the methods available - most of them are self-explanatory.
With all that said try this:
QUESTION
I'm using SciPy to solve a system of differential equations, and I am having some problems with the stability of the solution. Essentially, there are two state variables, and they should go to two relatively stable solutions, one asymptotically approaching zero (essentially zero) and the other to 0.59.
When I do this in R with the deSolve package it works fine, but I'm trying to use scipy and I'm getting a weird thing where the final solution, the state variables are not stable even though they should be? The values for the state variable that should be at zero go from a series of values in the order of 7.41e-323 and then jump up to 5.3e-001 for one step and then go back down. I have no idea why this is, but I'm wondering if anyone can provide any advice on how to a) fix this, or b) another option to use other than scipy?
Trying this in both R (lsoda package) and in Maple have yielded stable solutions.
Thanks!
Code: ...ANSWER
Answered 2021-May-24 at 19:23If you print the first decimal after the dot of the last M component in a C-M grid, you get
QUESTION
For example, if we have a logic function F = (x1 or x2) and (not x2) then we can verify a solution [x1=true, x2=false] of equation F = true this way:
...ANSWER
Answered 2021-May-13 at 01:00G := (x1 &or x2) &and (¬ x2):
cand := {x1=true, x2=false}:
QUESTION
I was running diff(abs(2*x + 5), x), maple gives me an answer of 2*abs(1, 2*x + 5)
I actually dont know what that means. But I know the answer is (4*x + 10)/abs(2*x + 5). How could I transform the answer from 2*abs(1, 2*x + 5) to (4*x + 10)/abs(2*x + 5)
Thanks for the help.
...ANSWER
Answered 2021-May-05 at 22:50diff(abs(2*x + 5), x) assuming x::real;
/ 5\
2 signum|x + -|
\ 2/
ans1 := normal(convert(%,abs));
2 x + 5
ans1 := -------
| 5|
|x + -|
| 2|
ans2 := (4*x + 10)/abs(2*x + 5);
4 x + 10
ans2 := ---------
|2 x + 5|
combine(normal(convert(ans1-ans2, signum)));
0
QUESTION
I got a project where I have to print the complex nested JSON files "Keys" only instead of its values. The number of files is multiple and each file has more than 300 lines which are hard to be completed manually. Normally when I am printing JSON data, so I am doing complete mapping like the below example:
...ANSWER
Answered 2021-Apr-24 at 13:04There is a native js function for this, Object.keys(),
You can find more info at MDN docs
This method will return only the keys of the objects you have, any custom functionality
you need can be added by using this function
QUESTION
I would like to print a nested dictionary in a certain format (see the expected output below) using .format().
It should be:
- sorted alphabetically (by name, which I managed to do)
- the column width should be the width of the longest item plus 3 spaces (which I didn't manage to do)
The dictionary in question:
...ANSWER
Answered 2021-Apr-19 at 16:10You have to somehow get the maximal width of each column before looping over the items, like so:
QUESTION
I'm new to Maple and I'm looking for a simple way to automate some tasks. In particular, I'm looking for a way to define custom "action" that perform some steps automatically. As as an example I would like to define a quick way to compute the determinant of the Hessian of a polynomial. Currently the way I do this is opening Maple, create a new worksheet than performing the following commands:
...ANSWER
Answered 2021-Apr-17 at 16:31First things first: The value assigned to your p is a procedure which can return a polynomial expression, but not itself a polynomial. It's important not to muddle expressions and procedures. Doing so is a common cause of problems for new users.
Being able to throw around p(x,y) may be visually pleasing to your eye, but it serves little programmatic purpose here. The fact that the formal parameters of procedure p happen to be called x and y, along with the fact that you called procedure p with arguments x and y, is actually just another common source of confusion. Don't create procedures merely to call them in this way.
Also, your call p(x,y) makes it look magic that your code snippet "knows" how many arguments would be required by procedure p. So it's already a muddle to have your candidate HessDet accept p as a procedure.
So instead let's keep it straightforward, by writing HessDet to accept a polynomial rather than a procedure. We can programmatically ascertain the names in which this expression of of type polynom.
QUESTION
I've got an array of 35+ store locations that I'm returning from my database. The raw data looks like this:
...ANSWER
Answered 2021-Apr-14 at 16:17Here's how I got it done:
Like above, I grouped my data by state using lodash:
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