pi | interactive parsing in GoKi / GoGi framework | Parser library
kandi X-RAY | pi Summary
kandi X-RAY | pi Summary
pi/lang.go defines the Lang interface, which each supported language implements (at least a nil stub) -- at a minimum the Parser, ParseFile(which includes just lexing if that is all that is needed), and HiLine methods should be implemented, to drive syntax highlighting / coloring / tagging. Optionally, completion, lookup, etc can be implemented. See langs/golang for a full implementation, and langs/tex for a more minimal lex-only case. pi/langsup.go has tables of supported languages and their properties, in LangProps. pi in general has overall management methods for coordinating the lex (lexing) and parse parsing steps. lex also has a variety of random manual and indent functions that are useful for special-case manual parsing cases.
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Top functions reviewed by kandi - BETA
- BraceMatch returns the matched rune at r .
- bibtexErrorMessage returns a string that can be used to track Bison error messages .
- MatchSeedString matches the given seed string
- MatchSeedCompletion finds a list of completions for a given seed
- MimeFromFile returns the MIME type matching the given file name .
- IsMatch returns true if the target is a match
- MergeAvailMimes merges the AvailMimes .
- LineStartEndBracket returns the start and end of the tag .
- AddTypeNames adds all of the types to the given type
- LineIndent returns the indented indent of a line .
pi Key Features
pi Examples and Code Snippets
Lines of Code : 14License : Permissive (BSD-3-Clause)
Copy SubExpr: -Expr '-' Expr
AddExpr: -Expr '+' Expr
RemExpr: -Expr '%' Expr
DivExpr: -Expr '/' Expr
MultExpr: -Expr '*' Expr
IfStmt {
IfStmtExpr: 'key:if' Expr ' if a + b * 2 / 7 - 42 > c * d + e / 72
AddExpr: Expr '+' Expr
var MultSlice = p[2]*Rule // this is multiplication
var SliceAry = [2]*Rule{} // this is an array literal
ps.Errs[len(ps.Errs)-1].Error()[0][1].String()
Slice: ?PrimaryExpr '[' SliceExpr ']' ?PrimaryExpr
def pi(precision: int) -> str:
"""
The Chudnovsky algorithm is a fast method for calculating the digits of PI,
based on Ramanujan’s PI formulae.
https://en.wikipedia.org/wiki/Chudnovsky_algorithm
PI = constant_term / ((multin def estimate_pi(number_of_simulations: int) -> float:
"""
Generates an estimate of the mathematical constant PI.
See https://en.wikipedia.org/wiki/Monte_Carlo_method#Overview
The estimate is generated by Monte Carlo simulations. L def pi_estimator_using_area_under_curve(iterations: int) -> None:
"""
Area under curve y = sqrt(4 - x^2) where x lies in 0 to 2 is equal to pi
"""
def function_to_integrate(x: float) -> float:
"""
Represents sem Community Discussions
Trending Discussions on pi
QUESTION
So... I can sympy.integrate a normal distribution with mean and standard deviation:
ANSWER
Answered 2021-Jun-15 at 01:38Here's a close case that works:
QUESTION
I am trying to run a simple parallel program on a SLURM cluster (4x raspberry Pi 3) but I have no success. I have been reading about it, but I just cannot get it to work. The problem is as follows:
I have a Python program named remove_duplicates_in_scraped_data.py. This program is executed on a single node (node=1xraspberry pi) and inside the program there is a multiprocessing loop section that looks something like:
...ANSWER
Answered 2021-Jun-15 at 06:17Pythons multiprocessing package is limited to shared memory parallelization. It spawns new processes that all have access to the main memory of a single machine.
You cannot simply scale out such a software onto multiple nodes. As the different machines do not have a shared memory that they can access.
To run your program on multiple nodes at once, you should have a look into MPI (Message Passing Interface). There is also a python package for that.
Depending on your task, it may also be suitable to run the program 4 times (so one job per node) and have it work on a subset of the data. It is often the simpler approach, but not always possible.
QUESTION
I am trying to make a next-word prediction model with LSTM + Mixture Density Network Based on this implementation(https://www.katnoria.com/mdn/).
Input: 300-dimensional word vectors*window size(5) and 21-dimensional array(c) representing topic distribution of the document, used to train hidden initial states.
Output: mixing coefficient*num_gaussians, variance*num_gaussians, mean*num_gaussians*300(vector size)
x.shape, y.shape, c.shape with an experimental 161 obserbations gives me such:
(TensorShape([161, 5, 300]), TensorShape([161, 300]), TensorShape([161, 21]))
...ANSWER
Answered 2021-Jun-14 at 19:07for MDN model , the likelihood for each sample has to be calculated with all the Gaussians pdf , to do that I think you have to reshape your matrices ( y_true and mu) and take advantage of the broadcasting operation by adding 1 as the last dimension . e.g:
QUESTION
ANSWER
Answered 2021-Jun-14 at 12:05You can accomplish this with a properly specified radial gradient - for example
QUESTION
I know there are a few answer for this, but it seems this one is a bit different. I need to change doughnut chart, rounded the first one and the last but one too. So in my example the black (first dataset) only would be rounded on the beginning (one side) and the gray (last but one) would be rounded at the end, like on the picture.
Of course, this is the latest version (v3) of Chart.js.
I used some code from here: Chart.js Doughnut with rounded edges and text centered
Maybe it's better with a custom chart, but I couldn't even get this far with that.
This is my code so far. Only makes rounded the first dataset and unfortunately both sided of it.
...ANSWER
Answered 2021-Jun-14 at 16:44I have modified your code and made changes for roundedCornersFor. It will now take an object structure which will define take start and end as keys and the values will be the arc positions which are according to labels.
QUESTION
I am using Openocd to debug my code remotely for STM32 via Raspberry pi as detailed in this tutorial: https://learn.adafruit.com/programming-microcontrollers-using-openocd-on-raspberry-pi
Whenever I run openocd it starts gdb server on port 3333 which is default of course as shown in the picture above. My question is that, is there a way to provide a different port number for openocd to start the gdb-debugger on... For example, if I want to run openocd where i want gdb server to start on 3334 instead of 3333 how can i do that.
I intend to do that so that i can run multiple openocd instances for different targets simultaneously connected to a single raspberry pi. Any help will be greatly appreciated. Thanks in advance.
...ANSWER
Answered 2021-Jun-14 at 14:29OpenOcd manual explains how to select a specific port number inside the configuration file as shown in image below:
QUESTION
I am working with objects, which have many attributes. I am not using all of the attributes but if I access one then I will use it many times. Is it possible to initialize an attribute only during the first time it gets accessed. I came up with the following code, which is sadly really slow.
...ANSWER
Answered 2021-Jun-14 at 11:39For Python 3.8 or greater, use the @cached_property decorator. The value is calculated on first access.
QUESTION
I have a raspberry pi 4 running a tomcat server hosting my website. Right now it's blank, and I wanted to do connection tests on it before starting to build it. I am doing this to keep costs minimal and to be able to do other things with it later. However, as you can see in this image, I thought this was the way to set it up, but I get a 522 every time I try to connect to it. (I have IP blurred as it is my home IP). But, when I connect to the IP address directly, even through another wifi network, the page loads. Cloudflare has worked in the past when I was hosting on Google Firebase for a little bit, but once I switched to the pi, it stopped.
Thanks in advance for help.
...ANSWER
Answered 2021-Jun-14 at 03:27Cloudflare 522 errors are commonly caused by a wrong SSL configuration for your domain.
If you do not have HTTPS enabled locally, then you need to use the Flexible SSL mode. If you have HTTPS enabled then you need to switch to Full mode.
- Choose the domain and go to the SSL/TLS tab
- Select the right SSL mode depending on your setup and validate if it works.
You could have been using a different configuration when you were with Google.
See this link for more info: https://developers.cloudflare.com/ssl/origin-configuration/ssl-modes
QUESTION
I've tried for the last few days without too much success to rotate, scale and translate shapes on the canvas. I've read everything I could find on internet about similar issues but still I cannot seem to be able to adapt it to my own problem.
If everything is drawn on the same scale, I can still drag and drop. If I rotate the shapes, then the mouseOver is messed up since the world coordinates don't correspond anymore with the shape coordinates.
If I scale, then it's impossible to select any shape.
I look at my code and do not understand what I'm doing wrong.
I read some really nice and detailed stackoverflow solutions to similar problems.
For example, user @blindman67 made a suggestion of using a setTransform helper and a getMouseLocal helper for getting the coordinates of the mouse relative to the transformed shape.
I spent some time with that and could not fix my issue. Here is an example of what I tried. Any suggestion is appreciated.
...ANSWER
Answered 2021-Jun-14 at 02:31If I have time tomorrow I will try to implement the following to your code but I can provide you with a working example of how to get mouse collision precision on a rotated rectangle. I had the same struggle with this and finally found a good explanation and code that I was able to get to work. Check out this website
Now for my own implementation I did not use the method on that website to get my vertices. As you'll see in my code I have a function called updateCorners() in my Square class. I also have objects called this.tl.x and this.tl.y (for each corner).
The formulas are what I use to get vertices of a translated and rotated rectangle and the corner objects are what are used to determine collision. From there I used the distance() function (Pythagorean theorem), the triangleArea() function, and then the clickHit() function which I renamed to collision() and changed some things.
Example in the snippet below
QUESTION
I've written a Pi Hardware Interface Server (phis) that uses http protocol to control the hardware connected to my Raspberry Pi (relays, analog measurements, etc). It processes simple requests and responds with plain text. It has been working flawlessly for years and I have written extensive browser-based interfaces to the system. Here's the basic structure:
...ANSWER
Answered 2021-Jun-13 at 18:07Found the answer in this post ("Duh" moment the instant I saw it!)
I had forgotten to close the connected and listening sockets in the forked child, which were inherited by the spawned daemon and stayed open as long as it runs. Here's the code I'm using to spawn a process that will be left running (daemonized):
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