# Margmiðlun

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Margmiðlun

## 1. Stærðfræði

### 1.1. Reiknivélar

1.1.1. Reiknivél á netinu

1.1.1.1. http://www.mathportal.org/calculators/polynomials-solvers/polynomial-factoring-calculator.php

1.1.1.2. http://www.wolframalpha.com/

1.1.1.3. http://www.mathportal.org/calculators.php

## 2. Saga

### 2.2. Netið, www

2.2.1. Saga á Íslensku

2.2.1.1. http://is.wikipedia.org/wiki/Stærðfræði

2.2.1.2. http://vefir.mh.is/thoreir/saga/saga1.htm

2.2.1.3. http://www.mbl.is/greinasafn/grein/1053068/

2.2.1.4. http://visindavefur.is/svar.php?id=1737

2.2.1.5. http://www.tolvunot.is/tenglar/Tenglar.soguthaettir.htm

2.2.1.6. http://www.tolvunot.is/tenglar/Tenglar.soguthaettir.htm

2.2.2. Saga á ensku

2.2.2.1. Saga algebru

2.2.2.1.3. Yfirlit sögu algebru http://algebra32.blogspot.com/2008/11/v-history.html

### 2.3. Kína

2.3.1. Needham

2.3.1.1. Fyrirlestur um kínverska sögu vísinda http://www.youtube.com/watch?v=2fv1y6IzxFs

2.3.1.2. http://www.riseofthewest.net/thinkers/needham01.htm

2.3.1.3. http://www.nri.org.uk/index.html

2.3.2. Sönnun á pyþagórasarreglu

2.3.2.2. http://www.buzzle.com/articles/history-of-pythagorean-theorem.html

2.3.3. http://aleph0.clarku.edu/~djoyce/mathhist/china.html

2.3.4. http://en.wikipedia.org/wiki/Chinese_mathematics

2.3.5. http://britton.disted.camosun.bc.ca/china%5Cdevelopment.htm

### 2.4. Arabar

2.4.1. Upphaf algebru

2.4.1.1. al-Khwarizmi

2.4.1.1.2. http://muslimheritage.com/topics/default.cfm?ArticleID=631

2.4.1.1.3. http://courses.cs.vt.edu/~cs1104/Algorithms/AlKhowarizmi.htm

2.4.1.2. http://algebra32.blogspot.com/2008/11/v-history.html

2.4.1.3. Langur fyrirlestur frá Stanford http://www.youtube.com/watch?v=FME9avU3u2Y

### 2.5. Saga algebru texti

2.5.1.1. http://en.wikibooks.org/wiki/Algebra

2.5.2. http://en.wikipedia.org/wiki/Algebra

2.5.4. http://www.ucs.louisiana.edu/~sxw8045/history.htm

2.5.5. Stuttur texti http://ezinearticles.com/?History-of-Math---Where-Did-Algebra-Come-From?&id=5220295

2.5.6. http://www.encyclopedia.com/topic/algebra.aspx

2.5.7. http://en.wikipedia.org/wiki/Algebra

2.5.8. Saga algebru II

2.5.8.2. http://en.wikipedia.org/wiki/History_of_algebra

2.5.8.3. http://www.mindmeister.com/273744798

2.5.8.4. http://aleph0.clarku.edu/~djoyce/mathhist/algebra.html

2.5.8.5. http://1rg.com/algebra/images/home/history.htm

### 2.6. Saga algebru myndbönd

2.6.1. Stutt myndbönd um ýmislegt í sögu stærðfræði http://www.ehow.com/videos-on_9186_history-mathematics.html

### 2.7. Grikkir

2.7.1. http://en.wikipedia.org/wiki/Pythagorean_theorem

2.7.2. http://www.whyslopes.com/4040Volume_2_Three_Skills_For_Algebra/1700Chapter_17._Pythagorean_Theorem_Chinese_Square_Proof.html

2.7.3. http://www.mathsisfun.com/geometry/pythagorean-theorem-proof.html

## 3. Algebra, þema

### 3.4. Þáttun

3.4.1. þáttun talna

3.4.2.2. ef talan fyrir framan x í öðru er ekki einn http://www.youtube.com/watch?feature=fvwp&NR=1&v=FxTiogyhwfc

3.4.3. Þáttun II

3.4.4. Þáttun - algebrubrot

3.4.4.1. http://www.mathportal.org/algebra/rational-expressions/simplifying-rational.php

### 3.6. Margliður

3.6.1. margföldun margliða

3.6.1.1. http://www.mathportal.org/algebra/polynomials/multiplying-polynomials.php

## 8. Kennsla í stærðfræði

### 8.1. math TV

8.1.1. http://www.mathtv.com/videos_by_topic

### 8.2. Jöfnur

8.2.1. Einföld töflukennsla, jöfnur (24 mín) http://www.youtube.com/watch?v=ti5jmj9EZ8k

### 8.3. Kennsla, formúlur, reiknivél, próf

8.3.1. http://www.mathportal.org/index.php

## 9. Upplýsingaveitur

### 9.1. Wikipedia

9.1.1. http://en.wikipedia.org/wiki/Algebra