# Computational intractability and reductionism?

## What is computational intractability?

From Computer Science Wiki. Advanced programming. An intractable problem is a problem in which the only exact solution is one that takes too many resources (time, memory, etc.). In other words, a problem in which no efficient solution (other than the worst-case complexity) exists.

## What are tractable and Nontractable problems?

Tractable Problem: a problem that is solvable by a polynomial-time algorithm. The upper bound is polynomial. Intractable Problem: a problem that cannot be solved by a polynomial-time al- gorithm. The lower bound is exponential.

## What causes a problem to be intractable?

We refer to any algorithm whose running time is bounded by a polynomial in the input size (e.g., N log N or N^2) as a polynomial-time algorithm. We say that a problem is intractable if there is no polynomial-time algorithm for the problem.

## What problems are considered tractable?

So-called easy, or tractable, problems can be solved by computer algorithms that run in polynomial time; i.e., for a problem of size n, the time or number of steps needed to find the solution is a polynomial function of n. Algorithms for solving hard, or intractable, problems, on…

## What do you mean by computational complexity?

computational complexity, a measure of the amount of computing resources (time and space) that a particular algorithm consumes when it runs.

## Why is computational complexity important?

Computational complexity is very important in analysis of algorithms. As problems become more complex and increase in size, it is important to be able to select algorithms for efficiency and solvability. The ability to classify algorithms based on their complexity is very useful.

## What does tractable mean?

Definition of tractable

1 : capable of being easily led, taught, or controlled : docile a tractable horse. 2 : easily handled, managed, or wrought : malleable.

## What are P and NP problems?

The P versus NP problem is a major unsolved problem in computer science. It asks whether every problem whose solution can be quickly verified can also be solved quickly.

## What is a tractable problem business?

The tractability of a problem refers to how difficult problem is in terms of the amount of time it takes for the problem to be solved. This is related to the time complexity of the problem.

## What is a tractable model?

1. A ‘tractable’ model is one that you can solve, which means there are several types of tractability : analytical tractability (finding a solution to a theoretical model), empirical tractability (being able to estimate/calibrate your model) and computational tractability (finding numerical solutions).

## What things are tractable?

The definition of tractable is someone or something easy to manage, control or handle. An example of tractable is the Windows operating system. Capable of being easily led, taught, or managed; docile; manageable; governable.

## How do you use tractable?

Tractable in a Sentence 🔉

1. The dog was more tractable when he wore the vibrating collar.
2. If the project becomes too large, it will no longer be tractable by a single manager.
3. The lab technicians will have no problem conducting the tractable experiments.

## What are synonyms for tractable?

synonyms for tractable

• acquiescent.
• amenable.
• biddable.
• complaisant.
• compliant.
• controllable.
• docile.
• ductile.

## What does it mean to be irrepressible?

impossible to repress, restrain

Definition of irrepressible
: impossible to repress, restrain, or control irrepressible curiosity.

## What does Unrestrainable mean?

not restrainable : uncontrollable

Definition of unrestrainable
: not restrainable : uncontrollable.

## What is the meaning of indefatigably?

incapable of being fatigued

Definition of indefatigable
: incapable of being fatigued : untiring an indefatigable worker.