Math Misery
@mathmisery.bsky.social
Mathematician in Industry, Fractional Executive, Math Education
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#MTBoS #elemmathchat #iTeachMath #mathsky #mathchat #mathed #educoach #datascience #machinelearning #EduSky
For me, it was the "undoing of the product rule"
(fg)' = f'g + g'f
so that when I write integrals around everything it's
fg = ∫f'g + ∫g'f and then depending on the problem, it's either a u,v thought or a u, dv thought.
(fg)' = f'g + g'f
so that when I write integrals around everything it's
fg = ∫f'g + ∫g'f and then depending on the problem, it's either a u,v thought or a u, dv thought.
October 9, 2025 at 5:01 PM
For me, it was the "undoing of the product rule"
(fg)' = f'g + g'f
so that when I write integrals around everything it's
fg = ∫f'g + ∫g'f and then depending on the problem, it's either a u,v thought or a u, dv thought.
(fg)' = f'g + g'f
so that when I write integrals around everything it's
fg = ∫f'g + ∫g'f and then depending on the problem, it's either a u,v thought or a u, dv thought.
Reposted by Math Misery
So another example of this perhaps doi.org/10.1098/rsos...
The natural selection of bad science | Royal Society Open Science
Poor research design and data analysis encourage false-positive findings. Such poor
methods persist despite perennial calls for improvement, suggesting that they result
from something more than just m...
doi.org
October 1, 2025 at 3:32 PM
So another example of this perhaps doi.org/10.1098/rsos...
Do you feel that some of the aversion about collinearity is a function of which statistical methods were taught / available to the individuals working with the data and the underlying assumptions about those methods?
October 1, 2025 at 2:30 PM
Do you feel that some of the aversion about collinearity is a function of which statistical methods were taught / available to the individuals working with the data and the underlying assumptions about those methods?
Brew HaHa! In Wilmington, DE :)
October 1, 2025 at 9:36 AM
Brew HaHa! In Wilmington, DE :)
we can do a bunch of inspection. y = 2x^2 + x from the 1st eq. the 2nd eq becomes (2x^2 + x)*x^2 + 7x = 10. by inspection x = 1 solves it and so y = 3. another solution is x = -2 making y = 6. and both give x + y = 4. eq 2 is also y = (10 - 7x)/x^2, so eq 1 and 2 coincide in two spots (1,3), (-2,6)
September 21, 2025 at 7:31 PM
we can do a bunch of inspection. y = 2x^2 + x from the 1st eq. the 2nd eq becomes (2x^2 + x)*x^2 + 7x = 10. by inspection x = 1 solves it and so y = 3. another solution is x = -2 making y = 6. and both give x + y = 4. eq 2 is also y = (10 - 7x)/x^2, so eq 1 and 2 coincide in two spots (1,3), (-2,6)
i enjoy these with the tracer the most!
August 2, 2025 at 6:00 AM
i enjoy these with the tracer the most!
Do "pineapple" next [unless if you already did it!] :D
July 26, 2025 at 3:32 PM
Do "pineapple" next [unless if you already did it!] :D