Viewing profile — piadodjanho

Weirdly, those two codes behaves differently: $ gcc hn.c -O0 -o hn for (size_t i; i Without break: $ gcc hn.c -O0 -o hn for (size_t i; i

Hm. I don't know. My reasoning is about how much information can be encoded in the format. The IEEE-754 double format have 11 bits to encode the exponent and 52 bits to encode the …

lol, how the compiler didn't warn about uninitialized variable

The issues I enumerated affects both nano and non-nano sunscreen with different degrees. The most commons concerns specific of the nano version are the skin absorption and free rad…

A sunscreen that blocks UVB, harm marine life [1] and can cause allergic airways inflammation [2] when breathed (inevitable when it dries on your skin) is hardly the best sunscreen…

The the most commonly used sunscreen chemical have hormone like activity [1]. https://www.ewg.org/sunscreen/report/the-trouble-with-sunscr...

NaN is NaR (not a real) in posit notation.

Yeah. Gustafons is like, memory is cheap, just use a few hundreds of kb to store the quire. To be fair, he is not HW guy.

I looked at the asm generate from my original example and they generate very different codes, gcc applies other optimization when compiled with -O1. I've been fighting the compiler…

He also propose the use of an opaque register to accumulate (quire), in contrast to the transparent float register (its a mess, each compiler does what it think is best). When work…

In practice, subnormal are very rarely used. Most compiler disable subnormals when compiling with anything other than -O0. It takes over a hundred cycle to complete an operation. D…

Also a great format to count how many representation are wasted with redundant representation (ZeroS, NaN, +inf, -inf).

Ackchyually... The IEEE-754 has a lot of redundant representation. Not where you would expect though. Caveat: Those features are invaluable for some niche applications, but not for…

The Solar Zenith Angle is the most important. This is what changes from winter to summer and morning to night. Vitamin D production is only made on the UVB range that is highest at…

I've read a few paper on this subject you are absolutely correct, I don't know why you are have been downvoted. Vitamin D is only produced with in UVB wavelength [1]. No vitamin D …

Not for vitamin D production. Vitamin D is produced on UVB spectrum [1 Fig. 1] that decreases with the solar azimuth degree [2]. [1] https://www.direct-ms.org/wp-content/uploads/20…

Adding some information for those interested in more precise numbers. This paper [1] has the recommended exposure time for a few cities in Australia. If you live in the same latitu…

The page says its twice the traditional Cloud.

Any suggestion on what Prolog to use?

What are the differences from Prolog for a constraint programing language such MiniZinc?

The supreme court judges already stated that Gleen Greenwald cannot be investigated because the reporting. The police got this conversation from a backup kept by the hackers. There…

I should made it clearer that Gleen Greenwald that was not hacked. I described the procedure the hackers used to access the politicians conversations. Not GG's. In one interview, G…

Ironically, he Intercept published conversations from another news site with their source. They use the argument "the law protects the secret of the source", yet reveal others sour…

The accusation [1] is public. I will translate the highlight parts of the conversation transcription between the hacker and Gleen Greenwald. In another thread I discussed how they …