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1. Top results related to median definition math example problems

   • Example problems not in P nor in NP-complete but in NP

     Top Answer

     Answered Dec 13, 2010 · 8 votes

     • BQP problems such as integer factorization and discrete logarithm (cracking RSA and DSA) are thought to be outside of P and are also suspected to be in NP but not in NP-complete. Integer factorization is known to be in NP, and is supposed to be outside of P and NP-complete.

     http://en.wikipedia.org/wiki/BQP

     http://en.wikipedia.org/wiki/Integer_factorization

     • NP is a subset of EXPTIME, but it is expected that NP != EXPTIME (that is, EXPTIME-complete problems are not in NP). Like with P = NP, this is not yet proven (but it is known that P != EXPTIME). For example checking if an algorithm would half after k steps is EXPTIME-complete. Finding the power set is too (obviously).

     http://en.wikipedia.org/wiki/EXPTIME

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     1/5

   • Median Function in C Math Library?

     Top Answer

     Answered Aug 09, 2012 · 9 votes

     Conventional Method: (not recommended if you are working on image processing)

     /* median through qsort example */#include <stdio.h>#include <stdlib.h>-#define ELEMENTS 6int values[] = { 40, 10, 100, 90, 20, 25 };int compare (const void * a, const void * b){ return ( *(int*)a - *(int*)b );}int main (){ int n; qsort (values, ELEMENTS, sizeof(int), compare); for (n=0; n<ELEMENTS; n++) { printf ("%d ",values[n]); } printf ("median=%d ",values[ELEMENTS/2]); return 0;}

     However, are two functions to calculate median the fastest way without sorting the array of candidates. The following are at least 600% faster than conventional ways to calculate median. Unfortunately they are not a part of C standard Library or C++ STL.

     Faster Methods:

     //===================== Method 1: =============================================//Algorithm from N. Wirth’s book Algorithms + data structures = programs of 1976 -typedef int_fast16_t elem_type ;-#ifndef ELEM_SWAP(a,b)#define ELEM_SWAP(a,b) { register elem_type t=(a);(a)=(b);(b)=t; }elem_type kth_smallest(elem_type a[], uint16_t n, uint16_t k){ uint64_t i,j,l,m ; elem_type x ; l=0 ; m=n-1 ; while (l<m) { x=a[k] ; i=l ; j=m ; do { while (a[i]<x) i++ ; while (x<a[j]) j-- ; if (i<=j) { ELEM_SWAP(a[i],a[j]) ; i++ ; j-- ; } } while (i<=j) ; if (j<k) l=i ; if (k<i) m=j ; } return a[k] ;} #define wirth_median(a,n) kth_smallest(a,n,(((n)&1)?((n)/2):(((n)/2)-1)))//===================== Method 2: =============================================//This is the faster median determination method.//Algorithm from Numerical recipes in C of 1992elem_type quick_select_median(elem_type arr[], uint16_t n){ uint16_t low, high ; uint16_t median; uint16_t middle, ll, hh; low = 0 ; high = n-1 ; median = (low + high) / 2; for (;;) { if (high <= low) /* One element only */ return arr[median] ; if (high == low + 1) { /* Two elements only */ if (arr[low] > arr[high]) ELEM_SWAP(arr[low], arr[high]) ; return arr[median] ; } /* Find median of low, middle and high items; swap into position low */ middle = (low + high) / 2; if (arr[middle] > arr[high]) ELEM_SWAP(arr[middle], arr[high]) ; if (arr[low] > arr[high]) ELEM_SWAP(arr[low], arr[high]) ; if (arr[middle] > arr[low]) ELEM_SWAP(arr[middle], arr[low]) ; /* Swap low item (now in position middle) into position (low+1) */ ELEM_SWAP(arr[middle], arr[low+1]) ; /* Nibble from each end towards middle, swapping items when stuck */ ll = low + 1; hh = high; for (;;) { do ll++; while (arr[low] > arr[ll]) ; do hh--; while (arr[hh] > arr[low]) ; if (hh < ll) break; ELEM_SWAP(arr[ll], arr[hh]) ; } /* Swap middle item (in position low) back into correct position */ ELEM_SWAP(arr[low], arr[hh]) ; /* Re-set active partition */ if (hh <= median) low = ll; if (hh >= median) high = hh - 1; } return arr[median] ;}#endif

     In C++ I make these templated functions and if the numbers are increasing or decreasing (one direction) for such functions use int8_fast_t; int16_fast_t; int32_fast_t; int64_fast_t; uint8_fast_t; uint16_fast_t; types instead of regular [stdint.h] types (e.g. uint16_t; uint32_t, etc)

     Check all answers on Stack Overflow

     2/5

   • Math: Division Problems Generator

     Top Answer

     Answered Sep 25, 2014 · 0 votes

     You are specifically picking numbers where there are a reminder. You can just loop while there is a reminder instead:

     } while (num1 % num2 != 0);-

     However, you won't need to loop at all. If you pick the second operand and the answer, you can calculate the first operand:

     num2 = (int) (Math.random() *10);compAnswer = (int) (Math.random() * 10);-num1 = num2 * compAnswer;

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     3/5

   • Problems converting Java math to C#

     Top Answer

     Answered Apr 26, 2015 · 4 votes

     You may want to write your own methods to convert Radian To Degrees. It is a simple formula and seems that's why it is left out of the library.

     It can be a bit confusing at first which angle mode the C#.NET is using, but the answer is radians.

     You will need to write math converters to achieve your conversions.

     private double RadianToDegree(double angle){ return angle * (180.0 / Math.PI);}private double DegreeToRadian(double angle){ return Math.PI * angle / 180.0;}

     You can read this article for further help http://www.vcskicks.com/csharp_net_angles.php

     According to your example, it should be

     public double getAngle(Vector2 me, Vector2 target) { return RadianToDegree(Math.Atan2(target.y - me.y, target.x - me.x));}

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     4/5

   • Problems finding median of arrayList

     Top Answer

     Answered Dec 13, 2016 · 7 votes

     The problem is on the line where you find the middle:

     middle = (sets[sets.size()/2] + sets[sets.size()/2 - 1])/2;-

     You can use [index] notation only with arrays. You need to use getter/setter methods to access the elements of an ArrayList. This should work:

     middle = (sets.get(sets.size()/2) + sets.get(sets.size()/2 - 1))/2;-

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     5/5

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2. People also ask

   How do you calculate the median of a set of numbers?

   • Calculating the median of a set of numbers is a handy skill to have. It’s a measure of central tendency that tells you the middle value of a data set. To find the median, you simply need to organize the numbers in numerical order and then identify the number that falls right in the middle.

   How to Calculate Median: A Step-by-Step Guide for Accurate Results

   www.solveyourtech.com/how-to-calculate-median-a-step-by-step-guide-for-accurate-results/

   See all results for this question

   What is a median number?

   • If there is an odd number of numbers, such as the dataset 4, 6, 9, the median is simply the middle number, in this case, 6. If there is an even number of numbers, such as the dataset 3, 6, 7, 9, the median is the average of the two middlemost numbers, in this case, 6 and 7, so the median is 6.5.

   Mean Median Mode Calculator - With Steps

   www.omnicalculator.com/statistics/mean-median-mode

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   What is the median value of a set of numbers?

   • The median value of a set of numbers is the value at which half of the numbers in the set are below it, and the other half are above it. It is a measure of the center of a sample or population and is sometimes called the "middle" number. It is similar to the mean value.

   Median Calculator | How to Find the Median?

   www.omnicalculator.com/statistics/median

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   How do you find the median of a list?

   • The median can found by adding those two middle numbers together and then dividing the answer by two. Your child will most likely get a number with a decimal. For example, in a list that has 5 and 6 at equal distances from either end, the median would be 5.5. Show your sixth grader that the mean is the average of all the numbers in a list.

   Tips to Helping Your Sixth Grader Find the Mode, Median

   mathandreadinghelp.org/articles/Tips_to_helping_your_sixth_grader_find_the_mode_median_and_mean_in_their_math_homework.html

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3. www.solveyourtech.com › how-to-calculate-median-aHow to Calculate Median: A Step-by-Step Guide for Accurate ...

   www.solveyourtech.com › how-to-calculate-median-a

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   May 13, 2024 · Calculating the median of a set of numbers is a handy skill to have. It’s a measure of central tendency that tells you the middle value of a data set. To find the median, you simply need to organize the numbers in numerical order and then identify the number that falls right in the middle.

4. www.omnicalculator.com › statistics › medianMedian Calculator

   www.omnicalculator.com › statistics › median

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   May 21, 2024 · Here's how to use our median calculator to find the median of a dataset. It can also show you the step-by-step procedure to manually calculate the answer. Enter your data row by row, with one number in each row of the median calculator.

5. Videos

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     3:17

     byjus.com

     Median in Statistics - Median Formula, How to Find & Solved Examples

     Sep 28, 2018

     34.4K Views

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     5:33

     youtube.com

     How to Find the Median | Math with Mr. J

     Jun 8, 2020

     373.4K Views

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     17:56

     youtube.com

     Median of a Triangle Formula, Example Problems, Properties, Definition, Geometry, Midpoint & Centroi

     Aug 28, 2017

     304.5K Views

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6. www.geeksforgeeks.org › median-of-a-triangleMedian of Triangle: Definition, Formulas, Properties, and ...

   www.geeksforgeeks.org › median-of-a-triangle

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   May 28, 2024 · Median of a Triangle is a line segment that joins a vertex of a triangle to the midpoint of the opposite side. A median divides the joining into two equal parts. Each triangle has three medians, one originating from each vertex.

7. mathandreadinghelp.org › articles › Tips_to_helping_yourTips to Helping Your Sixth Grader Find the Mode, Median, and ...

   mathandreadinghelp.org › articles › Tips_to_helping_your

   • Cached

   5 days ago · The median can found by adding those two middle numbers together and then dividing the answer by two. Your child will most likely get a number with a decimal. For example, in a list that has 5 and 6 at equal distances from either end, the median would be 5.5.

8. www.proprofs.com › quiz-school › storyMean, Median, Mode, And Range Quiz - ProProfs

   www.proprofs.com › quiz-school › story

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   May 26, 2024 · Mean, median, mode, and range are essential measures used to analyze data sets and understand their central tendencies and variability. In this quiz, you'll encounter a series of questions that will challenge you to calculate and interpret these statistical measures based on given data sets.

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9. www.omnicalculator.com › statistics › mean-median-modeMean Median Mode Calculator

   www.omnicalculator.com › statistics › mean-median-mode

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   May 26, 2024 · Mean, median, and mode definitions: The mean is the average of all numbers. The median is the "middle" number, where there is an equal number of values less than and greater than the median. The mode is the most frequently occurring number.

10. libguides.ucol.ac.nz › Mathematics › meanmedianandmodeMean, median and mode - Mathematics - LibGuides at UCOL ...

    libguides.ucol.ac.nz › Mathematics › meanmedianandmode

    May 27, 2024 · The video above from Khan Academy contains an explanation of how to find the mean, median and mode of a set of numbers.