Surds

paulb203 · 2025-07-22 06:35:24

First off, sorry for the giant image
I resized it in Windows but it kept coming out huge
Is using imgur.com a good way to post images here?
Is there a better alternative?
Any advice, in baby steps, appreciated (perennial tech newbie here)

As for the surds problem:
Where did I start to go wrong?
And just a small hint please for going forward.

phrontister · 2025-07-22 16:50:58

Hi Paul;

paulb203 wrote:

First off, sorry for the giant image
I resized it in Windows but it kept coming out huge

I don't know the reason for that happening here on MIF , but this is what I do to get the approx size I want for my display:

1. Crop out what I don't need displayed (using M$ Paint, or some such). Cropping your image reduced it from 800px x 1778px to 743px x 530px, which removed about 72% of the original area!
2. Upload the cropped version to Imgur.
3. Enter Imgur's BBCode image link into my MIF post, and before pressing Submit, click Preview to assess image size.
4. If I want to change the image size, then immediately before the full stop of the image extension (eg, .jpeg, .png) I insert one of the following letters:
s (Small square)
b (Big square)
t (Small thumbnail)
m (Medium thumbnail)
l (Large thumbnail)
h (Huge thumbnail)

I copied your image, cropped it, and uploaded it to my Imgur.

To resize that image from original to medium, its original link https://i.imgur.com/8adTo66.jpg would become https://i.imgur.com/8adTo66m.jpg (note the inserted 'm' before the extension's full stop).

Here's the cropped image at original size:

And here's the image shrunk to medium size:

And here are the displays for all 7 size options (including the original) based on the cropped rectangular image I uploaded to Imgur:

You'll notice that the left and right sides of the 'small square' and 'big square' images are cropped. Unfortunately, Imgur does that automatically on rectangular images whose width exceeds their height, so if such cropping matters, either:
(a) don't use the 'small square' or 'big square' options on the rectangular image, or
(b) convert the rectangular image to a square (eg, by adding false top &/or bottom with image software).

Is using imgur.com a good way to post images here?
Is there a better alternative?

I've used Imgur since 2017, and think it gives a very good file host service.
They've changed their webpage layout to a somewhat confusing one that I haven't totally sussed out, but (lucky for me) on one of their pages (I forget which one) they give an option to use their old style...which I select straight away!

I don't know of a better alternative file host.

I use a PC &/or laptop. I've only had a 'smart'phone for a few months and am still learning it, so if you're on one of those things and have Qs about what I've said, we may need someone else (Bob?) to help out.

Last edited by phrontister (2025-07-23 11:22:14)

Bob · 2025-07-22 18:41:16

hi paulb203

Imgur can only show the image you uploaded, so you must have muddled up which one you sent. Not to worry though; I found the large size easier to read.

On the first line the 6 - root 8 should be in a bracket, but that hasn't led to an error as you proceeded as if it was there. All the way down that working is good, but when you go up to column two the next line is wrong. Somehow you've not collected the root 2 terms and the number terms correctly.

Bob

paulb203 · 2025-07-26 01:21:45

Thanks, guys, I'll check out the image posting.

Bob:
Yeah, I see where I went wrong now. In the last line of the first column I saw +2-2 and jumped to the wrong conclusion that I could get rid of those terms.
One of those ones that once you see it the wrong way it's hard to see it the right way, like when you make a simple arithmetical error and go back over it making the same mistake again and again (all of a sudden 2+5=8). Cheers.

Math Is Fun Forum

#1 2025-07-22 06:35:24

Surds

#2 2025-07-22 16:50:58

Re: Surds

#3 2025-07-22 18:41:16

Re: Surds

#4 2025-07-26 01:21:45

Re: Surds

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