j2y | A tiny CLI to convert JSON/YAML | YAML Processing library
kandi X-RAY | j2y Summary
kandi X-RAY | j2y Summary
A tiny CLI to covert JSON/YAML. Many thanks to ghodss/yaml.
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Top functions reviewed by kandi - BETA
- main is the main entry point for testing .
- GetInputBytes returns input bytes
- YamlToJson converts a YAML to JSON
- JsonToYaml convert input bytes to YAML format
- Output is a wrapper around fmt . Output
j2y Key Features
j2y Examples and Code Snippets
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Trending Discussions on j2y
QUESTION
First time posting. I am currently trying to solve 17 symbolic equations for 17 variables using sympy in Python. My equations are linear in the 17 variables. The issue that I am having is that the solve function is very slow - I have allowed my program to run for over two hours, and it still has not produced a result.
I have tried setting the flags "simplify" to false and "rational" to false, but my program still requires a very long time to run (it did not produce a result after several hours). I also tried using linsolve, and my program did not finish after I let it run overnight.
I also plugged my equations into MATLAB, converted them to matrix form, and solved them using MATLAB's backslash command. MATLAB gave me my result in a little over 2 minutes.
Does anyone have any advice on how to improve the performance of my Python code? I would like to be able to do all of my work in Python instead of having to rely on MATLAB's symbolic toolbox.
Python code:
...ANSWER
Answered 2020-Dec-14 at 23:46I'm expanding my comment into an answer.
In sympy 1.7 there is a new (undocumented and largely experimental) implementation of matrices based on the polynomial domains. Although this isn't really advertised to users this is now used by solve
, linsolve
and solve_linear_system
in order to solve systems of linear equations. The idea is to have matrices with elements that have something analogous to the dtype
of a numpy array except that the dtypes here are called "domains" and are based on mathematical concepts like rings and fields e.g. ZZ[x, y]
the ring polynomials in x
and y
with integer coefficients.
Your system of equations can not (yet) be represented by a domain in this matrix implementation because of the floats and the sin and cos functions so let's replace those with Rationals and Symbols:
QUESTION
I have the following parsed data from a csv file in the format of job, assembly, nodeLabel, x,y,z
...ANSWER
Answered 2020-Aug-18 at 03:47Try this
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