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[Port]

how the loving stuff did we get from javascript to the big loving bang

holy stuff

where were we at javascript

the first time you see it (assuming you went to school and didn't read it out of a book or something), it's written on a whiteboard
"ok class x increases going to the right, and y increases going up"

How does it matter where you first see it?

[Ad Bot]

[Honorabl3]

where were we at javascript

How does it matter where you first see it?

Well I thought it mattered on your perspective on how you could conclude what X and Y are. If we hop into the minds of the original mathematicians you could imagine that they had a paper flat, face up on a table. Soon they labeled forward with Y, and X with the sides.

Now these days, we have all this nice technology and we have that flat paper on the wall (smart boards etc). So maybe this is why Y is confused with Z.

(Please note everything above was just a speculative theory.)

[Lugnut]

where were we at javascript

op mentioned "JS" in his post

How does it matter where you first see it?

psychology, it's the first place you see it, it's engrained into your head that "y = up"
despite it laying on a table with y really being more of a "y = away from me" thing (also maps, y = north and south) the first place you hear about it is y = up
you have visual, auditory, and depending on the interactivity of the class, tactile feedback all saying y = up

[$trinick]

I went to school and I'm still very sure the first and only place I've ever seen a coordinate plane is on paper on my desk. What kind of teacher has the time to draw out a loving graph on the whiteboard? What an immense waste of classtime.

The graphs I see on whiteboards generally are just two lines, one for the X axis and one for the Y axis. The words "right" and "up" are never used, either. The X or Y values increase or decrease, not go right/left/up/down.

[Treynolds416]

I went to school and I'm still very sure the first and only place I've ever seen a coordinate plane is on paper on my desk. What kind of teacher has the time to draw out a loving graph on the whiteboard? What an immense waste of classtime.

The graphs I see on whiteboards generally are just two lines, one for the X axis and one for the Y axis. The words "right" and "up" are never used, either. The X or Y values increase or decrease, not go right/left/up/down.

The standard for schooling in america is to refer to "slope" as rise over run
rise being y, run being x

[$trinick]

Sure, but "rise over run" is more of a mnemonic than a definition. In every class I've ever been in, we refer to the Y value increasing as an increase in Y or whatever the Y axis is labeled. For example, if it was a distance versus time graph of something moving at a steady speed, you'd say distance increases at the same rate as time. Not distance goes up at the same rate as time goes right.

[Treynolds416]

Sure, but "rise over run" is more of a mnemonic than a definition. In every class I've ever been in, we refer to the Y value increasing as an increase in Y or whatever the Y axis is labeled. For example, if it was a distance versus time graph of something moving at a steady speed, you'd say distance increases at the same rate as time. Not distance goes up at the same rate as time goes right.

Well yes, but my point is that from when you first start to work with two dimensional planes (in maybe 6th grade idunno), your mind will associate y with up and x with across, it's just an easier way to learn about them. I still associate y as up and x as across as my default for two dimensional planes, but it's easy enough to rearrange the association depending on blank vs. blank

Even if your perspective is that of being directly above the graph, you would still refer to the directions as left/right and up/down (reinforced by things like directional pads on console controllers, etc.) When you're in a three dimensional space, the norm then turns to left/right and forwards/backwards (as dictated by wasd movement)

[$trinick]

Maybe for you, but I never associated Y with up. Like, I'd say things like "this point is higher than this other point," but in my mind I never really considered Y up. To be honest, I considered it direction Y. Since usually when I was working on math problems the paper was down on a table, I'd plot the point further away from my body so I'd consider direction Y the same direction as 'away.' I just always thought about it as a variable thing, if Y was pointing up then it'd be up, if Y was pointing out it'd be away, if Y was at an angle it'd be at that angle. Direction Y.

[Treynolds416]

I don't doubt your experience, I'm just saying that for most people in a 2D plane, y is up

[$trinick]

I don't doubt your experience, I'm just saying that for most people in a 2D plane, y is up

I didn't say it's not, I said

Am I the only person who never considered Y "up" on a 2d graph? Since I was looking down at it, I considered X left/right and Y forward/back.

[Lugnut]

tbh i think all three of us are on the same page