@5SpeedDeasil to [email protected] • 1 year agoRandom internet people explaining math better then math teacheri.imgur.comimagemessage-square198arrow-up11.74Karrow-down162cross-posted to: math
arrow-up11.68Karrow-down1imageRandom internet people explaining math better then math teacheri.imgur.com@5SpeedDeasil to [email protected] • 1 year agomessage-square198cross-posted to: math
minus-square@[email protected]linkfedilink4•1 year agoI think this is pretty much the imperative equivalent of foldl (\acc i -> acc + 3*i) 0 [1..4].
minus-square@[email protected]linkfedilink3•1 year agoCan you explain this out a bit more? I’m a self-taught programmer, of sorts, and I’m not quite getting this…
minus-square@nicolairathjenlink3•1 year agoA reducer “reduces” a list of values to one value with some function by applying it to 2 values at the time. For instance if you reduce the list [1, 2, 3] with the sum function you get (1 + (2 + 3)) = 6.
minus-square@nicolairathjenlink1•1 year agoDefinitely, although I’m sure that under the hood it’s all the same. Some (albeit high-level) languages also support a sum function that takes a generator as an input, which seems pretty close to this math notation.
Wouldn’t reducer be more precise?
I think this is pretty much the imperative equivalent of
foldl (\acc i -> acc + 3*i) 0 [1..4].Can you explain this out a bit more? I’m a self-taught programmer, of sorts, and I’m not quite getting this…
A reducer “reduces” a list of values to one value with some function by applying it to 2 values at the time.
For instance if you reduce the list [1, 2, 3] with the sum function you get (1 + (2 + 3)) = 6.
Definitely, although I’m sure that under the hood it’s all the same. Some (albeit high-level) languages also support a sum function that takes a generator as an input, which seems pretty close to this math notation.