P: Allow simple maths in number fields.

Having a similar feature in a single isolated dialog box is NOT what we're asking for here, and your comments thus far have been far less that constructive.

Dear Adobe,

I can see this topic was started 4 years ago.

Is there a technical reason it can't be done, or it's too difficult or take too long to code?

Would be great to hear an official response.

The title says it all.

Simple. Maths. In. Numeric. Fields.

Every 3D software does it, After effects does it plus many more. We should have had this years ago.

Example, I have 37 degrees rotation selected but I want to halve that:
I type 37/2 in the rotation field.

Example, I have 1326 pixels wide in image size but I want 25%.
I type 1326/4 in the field. Quicker than changing the pulldown to percentage.

Example, I create a new document at A4 but want 20 less pixels in the height.
Type 297-20 in the height field.

And so on......

Round up to the nearest integer in cases where you need deal with whole numbers (like document pixel amounts).

It would be awesome if the number input fields could do simple arithmetics to speedup design process; adding, subtracting, multiplications, etc. Such as the font size or line height fields would allow 27+64, and upon hitting "return" the result would replace the expression to 91px (or default metric).

Use case for ui designers: to quickly prototype web box-model elements in psd could type 26+4*2+3*2 for the height of a shape object to represent a web element that is "height: 26px with margin: 4px and padding: 3px".

Not all designers are good at math.

Canvas size already has a relative option that can add or subtract quite easily.

Examples:
1500+50 results in 1550
1500-300 results in 1200
1500*3 results in 4500
1500/2.5 results in 600

Support for multiple additions/subtractions if you need to take many sizes of images/etc into account for example:
1500+50+30+10+50..

Could also work with percent
250+20% results in 300

Saves work from doing the math manually

I would love if all numeric fields they could count as a calculator. E.g. I have a 90 mm width of the canvas and I want to extend from each side about 7 mm. Ergonomic way: "90 + 7 * 2". Of course they could be more complex things that are wrong counting from heads. E.g. x position of ninth in a series of items, including spaces. E.g. "100 + 9 * (40 + 10)" in number input for a new guideline.

For example, CINEMA 4D can do this.

Would it be possible to implement number value fields in Photoshop which can accept simple math formulas, such as 100/2 or 44*3 ?

Perhaps it's a little esoteric, but It's a feature I've come to rely on lots in other software (eg Modo by The Foundry). I've come across lots of times when I'd find it useful - recently using Filters such as Offset for fixing tiled pattern joins, creating and transforming Live shapes. I used to need it often when placing guides numerically, but thanks to the recent CC update the new Create Guides options do the job perfectly.

In comment to the original request post, I am of the opinion that multiplication should be written "160*2.5" (to quote the example) in order to be consistent with other Adobe apps that has this functionality.

The fact that you have to check a box to enable this when the same software company has solved in a way simpler and more intuitive way (i.e. there should be no patent issues) is unfathomable and beyond ignorant from a UX perspective. Or maybe I am beyond ignorant in understanding just how difficult this would be to add to Photoshop?