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Forum: Miscellaneous Math 2021-05-23, 14:12
Replies: 43
Views: 8,580
Posted By kriesel
https://www.intmath.com/blog/mathematics/how-to-us...

https://www.intmath.com/blog/mathematics/how-to-use-operator-precedence-in-algebra-12416
PEMDAS
Innermost parentheses first in case of nested.
Top exponent first in case of stacks.
Isn't every...
Forum: Miscellaneous Math 2021-05-22, 22:06
Replies: 43
Views: 8,580
Posted By kriesel
Yes and yes you seem to be. 1) You're missing...

Yes and yes you seem to be.
1) You're missing a power of ~p. Time per iteration is estimated as c p log p log log p. c * p * ln(p) * ln(ln(p)). Or log2, or log10, but be consistent.
Time for the...
Forum: Miscellaneous Math 2021-05-22, 14:57
Replies: 43
Views: 8,580
Posted By kriesel
Thanks for the somewhat supportive response,...

Thanks for the somewhat supportive response, Batalov.

Multiplying iteration count ~p by time per iteration which is dominated by squaring time for large p, t ~ c p2 log p log log p, or closer to...
Forum: Miscellaneous Math 2021-05-21, 21:36
Replies: 43
Views: 8,580
Posted By kriesel
t ~ c p2.1, as the reference info states multiple...

t ~ c p2.1, as the reference info states multiple places, including this (https://www.mersenneforum.org/showpost.php?p=523345&postcount=4) for beginners. (Why do you persist in not using the...
Forum: Miscellaneous Math 2021-05-20, 11:08
Replies: 43
Views: 8,580
Posted By kriesel
We had 80-bit computing of a sort, 40 years ago....

We had 80-bit computing of a sort, 40 years ago. https://en.wikipedia.org/wiki/Intel_8087
Mprime and Mlucas already use SIMD instructions up to AVX512 on processors that support them. Have for...
Forum: Miscellaneous Math 2021-05-20, 00:40
Replies: 43
Views: 8,580
Posted By kriesel
I don't expect to live long enough to see the...

I don't expect to live long enough to see the completion of searching up through exponent 108.5 or the 100Mdigit threshold, unless there's a huge paradigm shift. Moore's law is running out....
Forum: Miscellaneous Math 2021-05-19, 23:50
Replies: 43
Views: 8,580
Posted By kriesel
I think the edit would need to have been done ...

I think the edit would need to have been done
a) to the title of the first post in the thread, which is what names the thread;
b) within the time limit from posting that, which is one hour for us...
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