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Category Archives: Uncategorized
The KAngaroocompetition 2013
On March 21th I participated in the Kängurutävlingen arranged by the Royal Swedish academy of Science. My result was 45p. See examples from last years competition here
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More Graphtheory
More graph-terminology: The distance between two nodes is the shortest distance between the two nodes. A graph that starts and ends in the same node is called a cycle or a closed circuit. A simple path trespasses every node only … Fortsätt läsa
Graph theory
Complicated relations between different objects/phenomena can be visualized with graphs. a graph G is defined as an ordered pair of sets G = (V,E). where E is an ordered pair {a, b}, a,b ∈V. e.g. constitutes a pair of element … Fortsätt läsa
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Combinations
It is called acombination of r elements if the order of the elements in a selection of r elements out of n elements is irrelevant and redundance is not allowed. Another way of ststing this is to say that all … Fortsätt läsa
Publicerat i Gymnasiematematik(high school math), matematik 1c, matematik 5, Probability, Uncategorized
Märkt combinations
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Permutations
A permutation is an ordered arrangement of objects. Ex. If you have n objects to choose from you have n options for the first object, (n-1) options for teh second, (n-2) for the third and so on. Therefore the number … Fortsätt läsa
Publicerat i matematik 1c, Uncategorized
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Support WWF
Våra olika stödformer Fadderskap Stöd WWF med en banner Kontakt Världsnaturfonden WWF Ulriksdals Slott 170 81 Solna Tel: 08-624 74 00 PG: 90 1974-6 BG: 90 1-9746 info@wwf.se Stöd WWF med en banner Världsnaturfonden WWF … Fortsätt läsa
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The Amur leopard – an ecotype
Most leopards live on savannahs in tropical climate. However at the north-eastern limit of its range it exists in a cold-temperate climate with lots of snow and down to minus 25 degrees centigrade in the winter. Only about 40 of … Fortsätt läsa
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Asteroid-passage
In the evening today February the 15th. an asteroid flies by close to the Earth only about 27 600 km away. It measures about 40 m in length and is similar to the one responsible for the Tunguska (Siberia) impact … Fortsätt läsa
Science RSS-feed
For your service and convenience; I have added an RSS-feed from Daily Telegraph as a widget in the meny list to the right. Just click on the link and the latest Science and Tech-News will flow into your computer. Today … Fortsätt läsa
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