mjcohen

5 ms·

1.
by mjcohen 14d ago
And then you have the Trump administration's war on competence.
2.
by mjcohen 19d ago
The Reason Foundation has a series of Youtube videos about things that were done with good intentions but ended up making things worse.
3.
by mjcohen 1mo ago
So glad I am retired.
4.
by mjcohen 2mo ago
For some reason I read this as Making Referential Stupidity a Type
5.
by mjcohen 2mo ago
For math.stackexchange.com which uses MathJax, I use MacDown, a markdown editor with parallel windows, one showing the MathJax and the other (in real time) the rendered math. I find it essential. I enter my math directly into the editor wit
6.
by mjcohen 3mo ago
The ternary operator is easy to nest if you put each clause on a separate line. Then it looks just like nested if-then-else.
7.
by mjcohen 3mo ago
Years ago, I used Acrobat to extract tables from a PDF. Had to do it manually, but it pasted nicely into Excel.
8.
by mjcohen 3mo ago
As usual, anything Trump and his minions touch turns to garbage.
9.
by mjcohen 3mo ago
I believe that I got the first external cassette drive for the PET on the west coast. Only used it a very few times. The big boost was when I got the floppy disk drive. I could do anything!
10.
by mjcohen 3mo ago
For a nice introduction to relativity, look at The Einstein Theory of Relativity: A Trip to the Fourth Dimension by Lillian R. Lieber. $15 on Amazon. Written in 1945 and still quite good.
11.
by mjcohen 4mo ago
I enjoyed this article. I always find it interesting how things came to be and how individual contributions made things happen.
12.
by mjcohen 5mo ago
If you believe them.
13.
by mjcohen 5mo ago
As Victor said, his parents were very upset when they came home and found him in front of a roaring fire, because they did not have a fireplace.
14.
by mjcohen 5mo ago
Looks interesting. Should start with a definition of the Hyperbolic Tangent. It is only about 2/3 of the way that the definition occurs in a discussion of computing exp(x).
15.
by mjcohen 6mo ago
Damn. Never knew that. TIL
16.
by mjcohen 7mo ago
In the mid 70's, I was a graduate CS student at USC's Information Sciences Institute. I remember my feeling of awe when I used Arpanet (or was it Darpanet) to log into London and do stuff there. Wow!
17.
by mjcohen 7mo ago
Trump is clearly winning his war on America.
18.
by mjcohen 7mo ago
Not if the ratio between the largest and smallest floats is very large (2^(2^n)) where n is the number of bits in the exponent.
19.
by mjcohen 9mo ago
Like the old saying: Military justice is to justice as military music is to music
20.
by mjcohen 10mo ago
(I saw this on a math department bulletin board about 1960) A theorem both deep and profound States that every circle is round But in a paper by Erdos Written in Kurdish A counterexample is found
21.
by mjcohen 10mo ago
Did you use the regular version or the one with multiple-precision values?
22.
by mjcohen 1y ago
Clif bars recently went from 6 bars per box to 5. They write the 5 on the box as if it is something improved, not reduced.
23.
by mjcohen 1y ago
[flagged]
24.
by mjcohen 1y ago
As Disney almost wrote: Everybody wants to be a bat Cause noone but a bat really knows where it's at
25.
by mjcohen 1y ago
They will never own their mistakes. That's the point of lack of democracy.
26.
by mjcohen 1y ago
Make sure that is legal where you are and, if needed, you have their permission.
27.
by mjcohen 1y ago
There are enough evil people that the present is as bad as it is.
28.
by mjcohen 1y ago
TIL
29.
by mjcohen 1y ago
I find that improv classes are good sources of laughter.
30.
by mjcohen 1y ago
I voted against prop 13, but now I like it living in a house in Westchester for 44 years.

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