Why I got within 1 week in "ResearchGate" (July) 900 reads and "well done"; because the normal man do not want special Mathematics but Pictures & constructions to see it at once; sorry for the Wikipedia. ~~~~
Why I got within 1 week in "ResearchGate" (July) 900 reads and "well done"; because the normal man do not want special Mathematics but Pictures & constructions to see it at once; sorry for the Wikipedia. ~~~~