Should we Implement Stop and Frisk? Is it Worth It?

President Donald Trump has supported the implementation of “Stop and Frisk”, especially in certain cities with the highest levels of violent crime. Should this policy be implemented in San Francisco or in your own community? Why or why not?

Discuss the following questions in your analysis:

Is the policy constitutional (is it racial profiling, a violation of equal protection under the 14th amendment, or a violation of the 4th amendment protection against unreasonable searches)?

Will the policy encourage police officers to target people of color unfairly? Can it be implemented in a way that reduces crime, without discrimination?

Has the policy made communities safer in cities where it was implemented? Is there evidence that it might reduce crime in our SF neighborhoods? Is crime reduction a result of other factors?

Use facts and evidence from the sources below to back up your position. Include references for quotes and information in your paper and preview it in vericite to make sure you’ve included all of the correct references. You can also include your own experience, or the life experiences of others, to help illustrate your point.

No outside sources except these:

1. http://www.timwise.org/2013/07/amazing-video-on-nypd-racial-profiling-brutality-and-the-injustice-of-stop-and-frisk/

2. https://www.washingtonpost.com/news/the-fix/wp/2016/09/21/it-looks-like-rudy-giuliani-convinced-donald-trump-that-stop-and-frisk-actually-works/?utm_term=.89b8039fa5bb

3. https://www.pbs.org/wgbh/frontline/article/the-problem-with-broken-windows-policing/

4. http://www.nytimes.com/2013/08/13/nyregion/stop-and-frisk-practice-violated-rights-judge-rules.html?amp;_r=0&mtrref=www.pbs.org

5. http://www.latimes.com/local/lanow/la-me-sheriff-latino-drug-stops-grapevine-20181004-htmlstory.html

6. http://www.latimes.com/local/lanow/la-me-sheriff-latino-drug-stops-grapevine-20181004-htmlstory.html

7. https://www.policeone.com/officer-misconduct-internal-affairs/articles/170357006-Racial-disparities-in-SF-traffic-searches-raise-concerns-of-bias/

8. https://www.sfchronicle.com/bayarea/article/ACLU-sues-SF-police-claiming-unchecked-racism-in-13279819.php

In direct variable based math, Gaussian disposal is a calculation for illuminating frameworks of straight conditions, finding the rank of a lattice, and ascertaining the reverse of an invertible square grid. Gaussian end is named after German mathematician and researcher Carl Friedrich Gauss. GAUSS/JORDAN (G/J) is a strategy to locate the backwards of the networks utilizing basic tasks on the matrices.To locate the rank of a framework we utilize gauss Jordan end metod yet we utilize gauss Jordan technique in the event that we need to discover just the opposite of the invertible lattice. Calculation diagram Calculation of gauss Jordan technique is basic. We need to make the lattice a character network utilizing rudimentary task on it. It is initially composed as AI=A We will initially compose the upper condition and afterward perform rudimentary activity the correct hand side lattice framework and all the while on character grid to acquire following network. I=A A-1 The procedure of Gaussian end has two sections. The initial segment (Forward Elimination) diminishes an offered framework to either triangular or echelon shape, or results in a savage condition with no arrangement, demonstrating the framework has no arrangement. This is expert using basic column tasks. The second step utilizes back substitution to discover the arrangement of the framework above. Expressed proportionately for lattices, the initial segment diminishes a network to push echelon frame utilizing basic column tasks while the second lessens it to decreased line echelon shape, or line standard shape. Another perspective, which ends up being extremely helpful to break down the calculation, is that Gaussian end processes a framework disintegration. The three basic column tasks utilized in the Gaussian end (duplicating lines, exchanging lines, and adding products of lines to different lines) add up to increasing the first lattice with invertible networks from the left. The initial segment of the calculation figures a LU disintegration, while the second part composes the first framework as the result of a remarkably decided invertible lattice and a particularly decided decreased line echelon network. Gaussian disposal In straight variable based math, Gaussian disposal is a calculation for settling frameworks of direct conditions, finding the rank of a grid, and figuring the reverse of an invertible square network. Gaussian disposal is named after German mathematician and researcher Carl Friedrich Gauss, which makes it a case of Stigler's law. Basic column tasks are utilized to diminish a network to push echelon shape. Gauss-Jordan end, an augmentation of this calculation, diminishes the framework further to lessened column echelon shape. Gaussian disposal alone is adequate for some applications, and is less expensive than the - Jordan rendition. History The technique for Gaussian disposal shows up in Chapter Eight, Rectangular Arrays, of the vital Chinese numerical content Jiuzhang suanshu or The Nine Chapters on the Mathematical Art. Its utilization is represented in eighteen issues, with two to five conditions. The main reference to the book by this title is dated to 179 CE, however parts of it were composed as right on time as roughly 150 BCE. It was remarked on by Liu Hui in the third century. The technique in Europe comes from the notes of Isaac Newton.In 1670, he composed that all the variable based math books known to him came up short on an exercise for tackling concurrent conditions, which Newton at that point provided. Cambridge University in the long run distributed the notes as Arithmetica Universalis in 1707 long after Newton left scholastic life. The notes were generally imitated, which made (what is presently called) Gaussian disposal a standard exercise in polynomial math course readings before the finish of the eighteenth century. Carl Friedrich Gauss in 1810 formulated a documentation for symmetric end that was received in the nineteenth century by expert hand PCs to explain the ordinary conditions of minimum squares issues. The calculation that is instructed in secondary school was named for Gauss just during the 1950s because of perplexity over the historical backdrop of the subject Calculation outline The procedure of Gaussian disposal has two sections. The initial segment (Forward Elimination) diminishes an offered framework to either triangular or echelon shape, or results in a savage condition with no arrangement, demonstrating the framework has no arrangement. This is expert using rudimentary line activities. The second step utilizes back substitution to discover the arrangement of the framework above. Expressed equally for lattices, the initial segment lessens a network to push echelon shape utilizing rudimentary column tasks while the second decreases it to diminished line echelon frame, or line accepted frame. Another perspective, which ends up being extremely helpful to break down the calculation, is that Gaussian end figures a grid decay. The three basic line activities utilized in the Gaussian end (duplicating lines, exchanging lines, and adding products of columns to different lines) add up to increasing the first lattice with invertible grids from the left. The initial segment of the calculation registers a LU decay, while the second part composes the first lattice as the result of an interestingly decided invertible network and an exceptionally decided diminished column echelon framework. Model Assume the objective is to discover and depict the solution(s), assuming any, of the accompanying arrangement of straight conditions: The calculation is as per the following: wipe out x from all conditions beneath L1, and after that wipe out y from all conditions underneath L2. This will put the framework into triangular shape. At that point, utilizing back-substitution, every obscure can be explained for. In the precedent, x is killed from L2 by adding to L2. x is then killed from L3 by adding L1 to L3. Formally: The outcome is: Presently y is wiped out from L3 by adding 4L2 to L3: The outcome is: This outcome is an arrangement of straight conditions in triangular frame, thus the initial segment of the calculation is finished. The last part, back-substitution, comprises of understanding for the knowns in turn around request. It would thus be able to be seen that At that point, z can be substituted into L2, which would then be able to be unraveled to acquire Next, z and y can be substituted into L1, which can be comprehended to acquire The framework is comprehended. A few frameworks can't be diminished to triangular shape, yet still have something like one legitimate arrangement: for instance, if y had not happened in L2 and L3 after the initial step over, the calculation would have been not able decrease the framework to triangular frame. Be that as it may, it would in any case have lessened the framework to echelon shape. For this situation, the framework does not have a one of a kind arrangement, as it contains something like one free factor. The arrangement set would then be able to be communicated parametrically (that is, regarding the free factors, so that if values for the free factors are picked, an answer will be produced). By and by, one doesn't as a rule manage the frameworks as far as conditions however rather makes utilization of the expanded grid (which is likewise reasonable for PC controls). For instance: In this manner, the Gaussian Elimination calculation connected to the enlarged grid starts with: which, toward the finish of the principal part(Gaussian disposal, zeros just under the main 1) of the calculation, resembles this: That is, it is in line echelon shape. Toward the finish of the calculation, if the Gauss-Jordan elimination(zeros under or more the main 1) is connected: That is, it is in decreased column echelon shape, or line standard frame. Case of Gauss Elimination strategy!!! (To comprehend System of Linear Equations) One straightforward case of G/J push tasks is offered quickly over the rotating reference; a model is beneath: The following is a framework of conditions which we will settle utilizing G/J step 1 The following is the first enlarged lattice :turn on the "1" surrounded in red Line activities for the first rotating are named underneath Next we rotate on the number "5"in the 2-2 position, encompassed underneath The following is the aftereffect of performing P1 on the component in the 2-2 position. Next we should perform P2 Line activities of P2 are underneath The aftereffect of the second rotating is underneath. Presently rotate on "- 7" circled in red Utilizing P1 underneath we change "- 7″to "1" The following is the aftereffect of performing P1 on "- 7" in the 3-3 position. Next we should perform P2 Line activities of P2 are underneath The aftereffect of the third (and last) rotating is beneath with 3×3 ISM grid in blue Step [3] of G/J Re-composing the last lattice as conditions gives the answer for the first framework Different applications Finding the opposite of a grid Assume A will be a lattice and you have to figure its reverse. The personality lattice is increased to one side of A, shaping a framework (the square grid B = [A,I]). Through utilization of basic column activities and the Gaussian disposal calculation, the left square of B can be diminished to the personality framework I, which leaves A 1 in the correct square of B. In the event that the calculation can't decrease A to triangular frame, at that point An isn't invertible. General calculation to process positions and bases The Gaussian disposal calculation can be connected to any lattice A. On the off chance that we get "stuck" in a given section, we move to the following segment. Along these lines, for instance, a few lattices can be changed to a framework that has a diminished line echelon shape like (the *'s are discretionary sections). This echelon network T contains an abundance of data about A: the rank of An is 5 since there are 5 non-zero lines in T; the vector space traversed by the segments of A has a premise comprising of the primary, third, fourth, seventh and ninth section of A (the segments of the ones in T), and the *'s reveal to you how alternate segments of A can be composed as straight blends of the premise segments. Investigation Gaussian end to explain an arrangement of n conditions for n unknow>

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