The NCERT class IX textbook on mathematics has its chapter 5 entitled “Euclid’s geometry”. A public grievance was lodged with the government pointing out numerous other falsehoods in the book. The grievance in the 4000 character text format specified for grievances is posted at http://ckraju.net/geometry/NCERT-grievance-note.txt. There is also a detailed version, posted at http://ckraju.net/geometry/NCERT-grievance-detailed-note.pdf.
The NCERT in its response failed to supply any evidence for Euclid. This laughable response is further proof of the total irresponsibility of the NCERT. Its implicit policy is that students dare not ask questions, for if NCERT cannot answer, obviously the teachers would be unable to answer similar questions in class.
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Sitabhra Sinha’s buffoon public statements on real numbers and “Euclid”
My VIF lecture (pic1) was on “Practical ganita vs religious mathematics”, I explained the difference between √2 in Indian ganita (pic2), and √2 in present-day formal mathematics (pic3). Briefly, early Indian tradition (sulba sutra) saw Read more…