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Joined 1 year ago
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Cake day: June 14th, 2023

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  • She lost for a lot of reasons. OP has one of them. You have another. Both are valid and work to partially explain her loss.

    But honestly, significantly lower turnout by Dems this cycle seems to be the underlying cause of her loss. Whether that stems from Israel (or her gender, or her unwillingness to distance herself from Biden, or her inability to don the mantle of a populist in an age where populism is ousting governments all over the world, or her campaign’s difficulty in countering Republican messaging effectively, or a million other reasons you could invent) is debatable, and probably will be picked apart and analyzed by people far more qualified than I and probably also you. There are studies to be made, data to gather, and so on.

    Blaming everything on a single cause based on vibes is fine, rhetorically. And I wish Dems did more of that, because it is effective messaging, and it’s certainly true that this country still has a misogyny problem. But if you’re interested in understanding and picking apart the actual causes of Harris’s loss, then being open minded does help. And the rhetoric can be saved for a forum where it is more likely to piss off a Trump voter.





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    1 month ago

    An environmental posadist. Not a stance I’ve normally seen. Imo, if nothing came out of deep water horizon, there’s no oil accident big enough to matter.

    Transocean received an early partial insurance settlement for total loss of the Deepwater Horizon of US$401 million about 5 May 2010.[60] Financial analysts noted that the insurance recovery was likely to be more than the value of the rig (although not necessarily its replacement value) and any liabilities – the latter estimated at as much as US$200 million.






  • A problem that only affects newbies huh?

    Let’s say that you are writing code intended to be deployed headless in the field, and it should not be allowed to exit in an uncontrolled fashion because there are communications that need to happen with hardware to safely shut them down. You’re making a autonomous robot or something.

    Using python for this task isn’t too out of left field, because one of the major languages of ROS is python, and it’s the most common one.

    Which of the following python standard library functions can throw, and what do they throw?

    bytes, hasattr, len, super, zip



  • Oh, I’ll try to describe Euler’s formula in a way that is intuitive, and maybe you could have come up with it too.

    So one way to think about complex numbers, and perhaps an intuitive one, is as a generalization of “positiveness” and “negativeness” from a binary to a continuous thing. Notice that if we multiply -1 with -1 we get 1, so we might think that maybe we don’t have a straight line of positiveness and negativeness, but perhaps it is periodic in some manner.

    We can envision that perhaps the imaginary unit, i, is “halfway between” positive and negative, because if we think about what √(-1) could possibly be, the only thing that makes sense is it’s some form of 1 where you have to use it twice to make something negative instead of just once. Then it stands to reason that √i is “halfway between” i and 1 in this scale of positive and negative.

    If we figure out what number √i we get √2/2 + √2/2 i

    (We can find this by saying (a + bi)^(2) = i, which gives us (a^(2) - b^(2) = 0 and 2ab = 1) we get a = b from the first, and a^(2) = 1/2)

    The keen eyed observer might notice that this value is also equal to sin(45°) and we start to get some ideas about how all of the complex numbers with radius 1 might be somewhat special and carry their own amount of “positiveness” or “negativeness” that is somehow unique to it.

    So let’s represent these values with R ∠ θ where the θ represents the amount of positiveness or negativeness in some way.

    Since we’ve observed that √i is located at the point 45° from the positive real axis, and i is on the imaginary axis, 90° from the positive real axis, and -1 is 180° from the positive real axis, and if we examine each of these we find that if we use cos to represent the real axis and sin to represent the imaginary axis. That’s really neat. It means we can represent any complex number as R ∠ θ = cos θ + i sin θ.

    What happens if we multiply two complex numbers in this form? Well, it turns out if you remember your trigonometry, you exactly get the angle addition formulas for sin and cos. So R ∠ θ * S ∠ φ = RS ∠ θ + φ. But wait a second. That’s turning multiplication into an addition? Where have we seen something like this before? Exponent rules.

    We have a^(n) * a^(m) = a^(n+m) what if, somehow, this angle formula is also an exponent in disguise?

    Then you’re learning calculus and you come across Taylor Series and you learn a funny thing, the Taylor series of e^x looks a lot like the Taylor series of sine and cosine.

    And actually, if we look at the Taylor series for e^(ix) is exactly matches the Taylor series for cos x + i sin x. So our supposition was correct, it was an exponent in disguise. How wild. Finally we get:

    R ∠ θ = Re^(iθ) = cos θ + i sin θ