JustSomeGuy1

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  • iPad finally has a Calculator app - Here's everything it can do

    Unfortunately, as currently implemented, Math Notes is just a toy. It might be useful at some points for grade school and high school math, but not always. Pretty useless at a college level and later. But I have some hope that it will grow a lot - the groundwork is done! Tacking on a much more capable backend is almost trivial, in that it's a problem that's already been solved multiple times. The front end would still need some work, but I think most if not all the hard problems are solved, or well on their way.

    At the moment, it understands arbitrary variables, but it's not clear how smart it's going to be about them. It *doesn't* understand subscripted vars - or rather, it does, but it refuses to work with them! It's also not clear how it will handle ambiguity, like, what if you declare n, m, and p, and then declare np? How does it calculate "3np"? That's obviously a user error, so hopefully it will have a smart way to help the user fix it.

    It has no idea what matrices are, AFAICT. Much more problematic, it doesn't support function declarations.

    Part of me feels optimistic about this - it could be an AMAZING showcase for useful AI tech supporting a general-purpose tool. But part of me remembers the Mac graphing calc app sitting in the utilities folder for so many years without getting any love.

    brianus said:
    Can anyone with the beta confirm that this supports slideover?
    Yes, it does. There are a few small display bugs that I've noticed, none significant.

    Can you write a second order polynomial and have it give you the roots using the quadratic equation?
    ...sort of. You can write a a second-degree poly as y=... and it will offer to graph it for you. Look at the intersections of the X axis and you have your solutions. No actual application of the formula though. And certainly no factoring. It will graph higher-degree polys but it does not support 3-d graphs, or generally any of the cool stuff that's in the graphing calculator on the Mac. I really hope that they will merge the two codebases, or at least borrow a lot.

    dewme said:
    Without having used the new iPad calculator, if they provide a result stack or memory register/buffer save and recall it should be easy enough to solve a complex formula incrementally by rolling the result from one sub-expression into the next.
    [...]
    It seems like the Magic Trackpad and Apple Pencil would be an awesome pairing.
    Variables are better than a stack. The trackpad is useless. ThePencil is great if your handwriting is decent. It's semistupid about bad writing- not terrible, but not good.

    dewme said:
    [...] This sounds like it will be easy enough to break down a complex formula or proof into separate parts by using the variables from one or more sub-expressions to calculate the final result, with each of the saved variables holding the intermediate results. This would be interesting for writing a document that has a textual description of a problem and then using the hand drawn math formulas for each step along the solution to make the results come to life within the document itself. Truth be told, this sort of capability implemented as an embedded component would be equally at home in Pages, if there was a way to embed handwritten formulas on a Mac.
    Yes, this would be great for writing out long-form high school algebra problems. Trig too. I expect this will work well with Pages but I haven't tried it.
    I wonder how portable these Math Notes will be? Will there be an export to PDF or something similar so I can share the entire text + math worksheet with others?
    Since it's in Notes, which allows exporting to PDF (and others), the answer is it'll be fine, though if you want shared editing, you'll have to stay inside Apple's ecosystem.
    williamlondonwatto_cobra
  • Apple's new diversity exec hails from Bank of America

    DEI is a sham and waste of money. 

    Hire the most qualified applicants and reap the rewards. 

    It’s really that simple. 
    And yet a lot of smart and successful people think that it's not. They think that having a diversity of viewpoints and life experiences among their employees is a strength.
    Alex_V9secondkox2argonautwilliamlondonfastasleep
  • Apple's new diversity exec hails from Bank of America

    I'll add that calling people racists when they are attempting to provide some minimal redress for centuries of wrongdoing are following a time-honored playbook. By labeling others with descriptions that apply to themselves, they (often successfully) seek to confuse the issue and avoid the blame they deserve.

    "When everyone's a nazi, nobody's a nazi!"

    It can be hard to distinguish the truth in such cases. And it's getting harder by the hour.
    dewmemuthuk_vanalingam9secondkox2Alex_Vargonautwilliamlondonkdupuis77fastasleep
  • Apple's new diversity exec hails from Bank of America

    40domi said:
    AppleZulu said:
    Came here to see the knee-jerk semi-racist and pretty-much-racist responses to anything ever posted here related to this subject. I was unsurprised to find it stacking up as expected.

    It's funny when people object to intentional efforts for diversity and inclusion as a pearl-clutching affront to "merit-based" hiring, as if merit based hiring has ever been a thing. When non-male, non-white people are excluded and steered away from a field like coding or engineering at every turn starting with early childhood, the resultant competition among the folks who make it to the point where they can even apply for the job cannot then be called winners in a merit-based system. If your competition has been repeatedly kneecapped before they ever make it to the starting line, getting to the finish line first does not make you a merit-based winner. If half your competition has never had a chance to get to the race, even as you "win," you should know that you've never actually been tested in a merit-based system.
    Typical racist response, full of unsubstantiated dribble!

    Systemic racism is overwhelmingly well documented. Unfortunately, evidence ("substantiation") is not actually of interest to people who foam at the mouth the moment the topic comes up.

    However, for the benefit of those who are not in that group, here are a couple of examples pulled at random from a quick google search. I'm sure someone who works in this field can easily provide better examples.

    It's easy to mess with data, or the analysis of it, to produce confusing or deceptive results. For example, this article contains lots of data, much of which supports the concepts of systemic and institutional racism, but it's consistently presented badly, with correct but deceptive charts that overstate the problem by, for example, using a nonzero baseline. This is a peculiar choice by the authors, since you don't need to be deceptive to support their position. Of course, many people who have a political stance against those concepts (like the posters here, but less obviously frothing) engage in the same behavior, when they bother to look at the data at all - which they mostly don't, since it's blindingly clear they're wrong.

    If you are curious about why and how things got so bad, one of the best examples, and best documented, is probably the history of redlining in this country. This practice alone shifted vast amounts of wealth out of the hands of minorities, blacks especially. Googling "redlining in the US" will probably give you a decent start.
    dewmemuthuk_vanalingamAlex_V9secondkox2argonautwilliamlondon
  • How to use Startup security in macOS to protect your Mac

    Also keep in mind that in the US at least, jailbreaking a computing device is a violation of the Digital Millennium Copyright Act. That makes it a Federal crime.
    You know a lot of stuff. Why do you insist on writing about things about which you are ignorant? (For example, you never retracted or amended your SSH article, which was hopelessly garbled and self-contradictory in its description of the SSH protocol.)

    In this instance: Jailbreaking is NOT illegal. The definitive statement from the federal government about this particular exemption to the DMCA is here: https://www.federalregister.gov/documents/2010/07/27/2010-18339/exemption-to-prohibition-on-circumvention-of-copyright-protection-systems-for-access-control and you can see example coverage of this in the press here: https://www.macworld.com/article/206764/jailbreak_exemption.html.
    HrebHreb