Description:
Mathematical discussions and pursuits.
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exp. integrators
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Hi, I have to estimate the component which contains an exponential integrator It means : est:= Integrate( exp( (h-t)lambda )* Phi(t), t=x...x+h) where Phi=g'(x)-lambda*g(x). This is the part of my estimation of the local error h is a step and lambda is a stiff value -1,-10,-1000. I should use some Gauss quadrature but in this moment I do not have... more »
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TAN 5:7 "PRIME NUMBERS" FROM INVERSE19 MATHEMATICS
 
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Your Mathematical theory should be "embarrased " about its Nuisance Primr number solution calling it Randon , murderous etc over 300 years, Since Inverse mathematics has clearly shown in these posts at Sci math that 1. Prime numbers are not random atall! 2. That Prime numbers are predictable by several means including... more »
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Rotation question
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I understand that to rotate something thru 90 degrees clockwise, the formulas are: x' = 0*x + y y' = -x + 0*y So the line y = x becomes y = -x. But I can't get y = x^2 to become x = y^2. What stupid mistake am I making?
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BEAUTIFUL DEAD SCIENCE
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Beautiful dead science: [link] "Like bronze idols that are hollow inside, Einstein built a cluster of "Potemkin villages," which are false fronts with nothing behind them. Grigori Potemkin (17391791) was a general-field marshal, Russian statesman, and favorite of Empress Catherine the Great. He is alleged... more »
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Cosmological Hypotenuse Conjecture.By Aiya-Oba
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(4/c^2 + 96/c^2)^2 = (c^2/81x10^2)^2 - Aiya-Oba (Philosopher). Where 4, is ordinary matter- energy, 96 (74 + 22), is dark energy and matter, annd c^2, is the speed of light squared, as in Einstein"s equation (mc^2). Such that; (4/9x10^16 + 96/9x10^16)^2 = (9x10^2/81x10^2)^2... more »
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MATHEMATICAL DEFINTION OF "MINUS 1" VALUE BY INVERSE 19 MATHEMATICS
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Any value that is between 1 and 0.0000000001 (10), divisible by exact 10 . The minus 1 value of the inverse 1 value of 1/36 = 1/36-- x1/36 X1/36 X1/36 X1/36X1/36 X1/36= 0.0000000001 precise , Note this is X6 times exact for 1/36 1-1=-1=.0000000001 because 1 is stopped by 1 as a" basic mathematics... more »
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Lebesgue's choice in graphical vs. verbal understanding of geometry
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I found mention of the following in _Geometry, A Comprehensive Course_, by Dan Pedoe, 1970. The following is a google translation: ...I guess Caron is saying that as a student he preferred Lebesgue's instruction, which included graphical approaches rather just the presentation of equations. I wonder what is the current practice of instruction in college geometry... more »
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