lambdaelite

16 ms·

91.
by lambdaelite 11y ago
Right, which is why a subset of C or C++ (like MISRA) is used for critical applications.
92.
by lambdaelite 11y ago
Everything other than the programming language: first principles, requirements engineering, formal analysis, estimation, project management, quality assurance, communication skills (lay and technical), etc.
93.
by lambdaelite 11y ago
That C/C++ have a formal standard and have an entire tool ecosystem is a huge advantage over Rust for mission critical and safety critical areas (not that Rust would be used for SC applications).
94.
by lambdaelite 11y ago
It's interesting to compare this list with the topics covered by the Software Engineering Book of Knowledge or the Software Engineering PE exam. Requirements engineering, formal documentation, estimation, project management, and ethic
95.
by lambdaelite 11y ago
A selfish reason to care is that apex predators like birds of prey are useful as indicators for the health of an ecosystem. Take the case of DDT as an example. A less selfish reason is that bad things happen to the rest of the ecosystem whe
96.
by lambdaelite 11y ago
A problem with the estimates in the U.S. is that turbines disproportionately affect legally-protected birds, and so the numbers are suspected to be severely under reported.
97.
by lambdaelite 11y ago
I'm so conflicted with Myhrvold: I hate Intellectual Ventures and what they do with the passion of a thousand suns, but Modernist Cuisine is an incredible and seminal work of art and science. The modernist methods for BBQ do consistent
98.
by lambdaelite 11y ago
I love kamados, but if one is really concerned with temperature control I don't see how one could beat a water bath for cooking with a separate smoking step. Also, while interesting, that hyperboloid profile has significant disadvantag
99.
Investigative Report on “Deflategate” Released [pdf](nfllabor.files.wordpress.com)
2 points by lambdaelite 11y ago|1 comments
100.
by lambdaelite 11y ago
While there is some overlap with the new mobile portion of LispWorks 7, mocl isn't in the same league. Allegro CL would be the proper competitor to LispWorks.
101.
by lambdaelite 11y ago
So for a mission critical or safety critical system, what's the alternative? It looks like the options are: 1, assembler 2, C + validated compiler + static verification + coding standard (MISRA-C maybe) 3, C++ + validate
102.
by lambdaelite 11y ago
After years of using an HP, I am literally unable to use anything but RPN without significant conscious thought. I'm faster with pencil and paper (or an abacus!) than using a non-RPN calculator at this point.
103.
by lambdaelite 11y ago
> How would it be anything other than circumstantial that it "actually happened"? Because the fault could trigger a DTC. Barr's argument was that the right kind of bit flip event could cause a fault and it would not be lo
104.
by lambdaelite 11y ago
> aftermarket floor mats How is it reasonable to hold a car manufacturer responsible for what could happen with aftermarket parts, unless those parts are designed to be an exact duplicate of an OEM part? > Well engineered products sho
105.
by lambdaelite 11y ago
I don't see why an independent analysis commissioned by Toyota would be any more or less credible because Toyota paid for it than an analysis by an expert witness paid for by a plaintiff in a civil suit. I should think they deserve eq
106.
by lambdaelite 11y ago
Is there a public version of their findings? Toyota hired Exponent to do an independent analysis of their electronic throttle and released that report to the public. It'd be interesting to compare Exponent's findings with the Ba
107.
by lambdaelite 11y ago
Or a '90s 4-banger Nissan Hardbody with a manual transmission. My father has one and there's a list of people waiting to buy it off him if he's ever willing to sell. Those things are great.
108.
by lambdaelite 11y ago
Toyota released an independent analysis of their electronic throttle system through their press website: http://toyotanews.pressroom.toyota.com/article_display.cfm?a... It's a fascinating report that includes a code re
109.
by lambdaelite 11y ago
Parts are changed all the time over the production run of a car. How does that constitutes an "engineering failure"?
110.
by lambdaelite 11y ago
In part because throttle and ignition control are increasingly eschewing mechanical linkages in favor of electronics. IIRC, the Camry in question had an electronic throttle, and the pedal part that experienced accelerated wear was an aceta
111.
by lambdaelite 11y ago
> The culture of software design for testability, encapsulation, code quality, code review, reuse, patterns, CMM levels, etc etc is largely orthogonal to hardware culture. I'm confused by this statement. Substitute say ASME for CMMI
112.
by lambdaelite 11y ago
Thanks so much for taking the time on a thoughtful response. > I can tell you that for us, at least 10 years ago, it was a remarkable success, and saved us a lot of time vs. developing in C or Ada, but that was for code running on large
113.
by lambdaelite 11y ago
Do you have, or know anyone, that has experience using a JVM in a safety critical application? I'm trying to decide if I want to use it in a medical device, or go the more conventional MISRA-C on QNX route.
114.
by lambdaelite 11y ago
For cable, yes, but I don't see how "bundling" applies to credit cards. That credit card companies compete on benefits would also seem to argue against your point. AmEx tried doing a piecemeal benefits program on their Zync c
115.
by lambdaelite 11y ago
That fee covers insurance and other benefits on the card, and with the benefits, you can break even (e.g, I get 2.2% cash back, which offsets the increase the retailer adds to cover interchange). Are you suggesting people don't want th
116.
by lambdaelite 11y ago
My Ph.D. dissertation. Although the sheepskin, title, and bound book are neat, the real prize is the dissertation. After years of struggling with the unknown, I teased out from nature a small secret that no one else in the world knew. Telli
117.
by lambdaelite 12y ago
So you'd like to take the fob out of your pocket, push a button to enable proximity unlock for a brief interval, place the fob back in your pocket, and then have the door unlock when you approach the car? I'm clearly missing somet
118.
by lambdaelite 12y ago
There's already a button on the fob to unlock the doors. The proximity unlock is a separate feature. The whole point of the proximity function is to remove the need to push a button on the fob. Your idea makes no sense, unless you&#x27
119.
by lambdaelite 12y ago
I'm very curious to see how the Apple Watch holds up in daily wear, especially the Sport version. I am having a hard time imagining an aluminum and glass watch looking nice after a couple months of daily wear on a wrist. Same goes for
120.
by lambdaelite 12y ago
I'm not sure what the mechanism would be here? What are you proposing?

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