logo
down
shadow

An algorithm that determines if a function f from the finite set A to the finite set B is an onto function.


An algorithm that determines if a function f from the finite set A to the finite set B is an onto function.

By : spren
Date : November 21 2020, 11:01 PM
like below fixes the issue How can I write an algorithm that determines if a function f from the finite set A to the finite set B is an onto function. , Yeah, that'll work. A potentially easier approach would be
code :
for each a in A:
    remove f(a) from B
return (is B empty?)


Share : facebook icon twitter icon
Idiomatic Python implementation for finite sets, images, and preimages of finite functions?

Idiomatic Python implementation for finite sets, images, and preimages of finite functions?


By : Karan Prashad
Date : March 29 2020, 07:55 AM
Hope that helps For arbitrary images from a set to another, I would use a Python dictionary. For example, f(n)=n^2 on a set of {1,2,3,4}, I can do this:
code :
preimage = set([1,2,3,4])
mapping = {x: x*x for x in preimage}
image = set(mapping.values())
assert set(mapping.keys()) == preimage
function = lambda x: mapping[x] # so you can now have y = function(x)
check_image = set([function(x) for x in preimage])
assert check_image == image
preimage = set([1,2,3,4])
function = lambda x: x*x
image = set([function(x) for x in preimage])
check_preimage = set([y for x in image for y in preimage if function(y)==x])
assert check_preimage == preimage
import math
preimage = set([1,2,3,4])
function = lambda x: x*x
inv_func = lambda x: int(math.sqrt(x))
image = set([function(x) for x in preimage])
check_preimage = set([inv_func(x) for x in image])
assert check_preimage == preimage
Can anyone please explain difference between finite state machine and finite automata?

Can anyone please explain difference between finite state machine and finite automata?


By : David
Date : March 29 2020, 07:55 AM
I hope this helps you . Both "Finite State Machine" FSM and "Finite Automata" (or Finite State Automata) FA means same, represents an abstract mathematical model of computation for the class of regular languages.
The word "Finite" significance the presence of the finite amount of memory in the form of the finite number of states Q (read: Finiteness of Regular Language).
Getting a random transversal for finite family of finite sets

Getting a random transversal for finite family of finite sets


By : shinichi2381
Date : March 29 2020, 07:55 AM
I wish did fix the issue. As Ante observes, we're looking for a bipartite matching, but the hard part here is finding a random one. If your graph is large enough, then you probably have to settle for the rapidly mixing Markov chain of Jerrum and Sinclair. Otherwise, there's an O(2^n poly(n))-time dynamic program for counting maximum matchings (as opposed to the O(n!)-time algorithm for enumerating them), which you can use to sample by repeatedly counting the number of matchings after either using an edge or not to match.
optim in r :non finite finite difference error

optim in r :non finite finite difference error


By : Jan Danvill
Date : March 29 2020, 07:55 AM
around this issue The error you ran into is because ϕ becomes negative beyond a certain number of iterations (which indicates that the constraints are not being applied correctly by the algorithm). Also, the solution does not converge to a single value but jumps between a few small values before reaching a situation where the updated covariance matrix is no-longer positive definite. At that stage you get det(v) < 0 and log[det(v)] is undefined. The optim algorithm bails out at that stage.
To see what's happening, play with the maxit and ndeps parameters in the code below.
MLE error in R: non-finite finite-difference value/ value in 'vmmin' is not finite

MLE error in R: non-finite finite-difference value/ value in 'vmmin' is not finite


By : Grant Redfearn
Date : March 29 2020, 07:55 AM
wish of those help Your Loss variable is negative. In R, raising negative values to a fractional power (i.e. set$Loss^alpha where alpha is non-integer) returns NaN values. (The only general alternative is to return a complex-valued answer, which you probably don't want.) Did you mean to code Loss as positive rather than negative? Or maybe you want -abs(set$Loss^alpha) ?
As a general purpose debugging tip, it helps to add
Related Posts Related Posts :
  • Making HTTP POST call using Gupshup's bot builder tool
  • Purescript - Unable to build with drawing and signals libraries
  • Unable to count the number of rows in BigTable
  • How to get an Erlang app to run at starting rebar3
  • varnish referencing an external file
  • What's the Transport Protocol for MessagePack / Protocol Buffers?
  • React-Bootstrap add pull-right to Button
  • Spring Integration Kafka Configuration - Errors in Eclipse
  • Modify Source Observable on retry - RxJava
  • False Error: A constructor name should not start with a lowercase letter babel/new-cap
  • configuration options used in ubuntu 16 apache2 package
  • Use Undertwo web server to serve both static pages and web service
  • tasm 1.4 color code orange instead of yellow
  • Calculating time complexity using master method
  • "Re-enabling" App Authenticity in Mobilefirst 8.0 not working
  • Two steps search to search document with similar vectors in Solr
  • What is the Big-O of this nested loop?
  • Why I'm not getting the params in activate method?
  • Check which side one rectangle collide with other
  • Where is record getting defined in the _master template default theme?
  • How to work around self borrowing with map .or_insert_with? Rust (1.11)
  • Strings that {b U a}* Accepts (Kleene Star)
  • GeoJSON layer won't load on MapBox GL JS
  • Difference between two expressions in Alloy?
  • How To Use NSNotificationCenter In Sierra
  • FreeBSD pkg suddenly stopped bootstrapping
  • Request a Blockchain API V2 to receive Payments
  • Hide the catalog page on Shopify
  • LLVM alignment of nested structs/arrays
  • A default parent router with child routers
  • grunt-mocha: PhantomJS timed out, possibly due to a missing Mocha run() call
  • Beautifulsoup extract multiple lines
  • is it ok to use the exports keyword with commonjs - webpack 1
  • When doing a compare, why must I cast an unsigned to avoid warnings
  • CIL / MSIL Boxing issue?
  • How to provide default url for mvcSiteMapNodes
  • Can an Action use bindFromRequest() method without no submitting?
  • Fatal error: Class 'Dingo\Api\Auth\Provider\LaravelServiceProvider' not found
  • p5.js Instance Mode: Cannot read property '0' of undefined
  • How to get Login / username using Azure AD Graph API for current user
  • Use attractor point with a vector to change size of small cubes
  • For regular language a*b*, is there a superset of it which is non-regular?
  • Error in nanpercentile when all values are NaN and strings
  • How to include password when enrolling CSR to EJBCA using JSCEP
  • Django Rest Framework ModelSerializer pk field not existing on update
  • Is it allowed to record CommandBuffers on multiple threads which were allocated from the same pool?
  • Rotation distance between two binary trees
  • Timex - Getting the timezone information from DateTime
  • What is the minimum code required to produce random numbers in Elm?
  • how to insert value in nested table through plsql block
  • Issues regarding classification instead of regression using deep learning
  • What brokers supports built-in recovery of sub-pub missed messages for crashed clients?
  • Evolutionary algorithm: What is the purpose of hidden/intermediate nodes
  • Custom Formatting for a class
  • How do you set the magnitude and the phase of the DFT of an image to a specific value?
  • Mapping of AspNetUsers and IdentityUser
  • OpenID Connect 1st and 3rd-party Relying Parties Architecture
  • Error importing app from backup on wit.ai
  • Can a Facebook Messenger Bot chat with two or more people in a group?
  • Update files on FTP server folder hierarchy with local files from a single folder
  • shadow
    Privacy Policy - Terms - Contact Us © soohba.com