Jump to content
You must now use your email address to sign in [click for more info] ×

Euler’s constant


Recommended Posts

I seem to have trouble with Euler's constant. I am certain that I'm just have brain fart. But in my mind I should be able to access that value as constant equal to 2.71828182845904. 

I can use the other constants like, pi, phi and root2 directly in the Transform panel by setting the W as pi, phi or root2. But not e. It is bold and red as if it is unknown or invalid. 

Is this expected, or I am confusing Euler's constant with something else? 😂 

I would it the following.

pi = 3.141592653589793
phi = 1.618033988749894
root2 = 1.41421
e = 2.71828182845904

e.png.8e019b757b71c730e41c0ecb427d8d93.pngpi.png.d40adf1280b647319310567022240e3c.png

Link to comment
Share on other sites

22 minutes ago, PepGold said:

Is this expected, or I am confusing Euler's constant with something else? 😂 

I have no answer for you but please see the xkcd comic. Maybe get a laugh.

euler_diagrams_2x.png

Mac Pro (Late 2013) Mac OS 12.7.4 
Affinity Designer 2.4.1 | Affinity Photo 2.4.1 | Affinity Publisher 2.4.1 | Beta versions as they appear.

I have never mastered color management, period, so I cannot help with that.

Link to comment
Share on other sites

From V1 Help

Mathematical constants

For general use throughout the user interface.

Input Constant
pi, π For Pi
phi, gr, φ For golden ratio
root2, rad, rt For Pythagoras’s constant
e Euler’s constant

 

e to me is Euler's number ie 2.7 and a bit, base of natural logs

Euler's constant is 0.57721 and a bit so I'm not sure what the help means

Whatever, e doesn't work whereas pi, phi and root2 do so I suspect it's a Serif fart

Microsoft Windows 11 Home, Intel i7-1360P 2.20 GHz, 32 GB RAM, 1TB SSD, Intel Iris Xe
Affinity Photo - 24/05/20, Affinity Publisher - 06/12/20, KTM Superduke - 27/09/10

Link to comment
Share on other sites

21 minutes ago, David in Яuislip said:

e to me is Euler's number ie 2.7 and a bit, base of natural logs

Euler's constant is 0.57721 and a bit so I'm not sure what the help means

That's right!

The help probably means the Napier's constant (Euler number), e = epsilon, since the Euler-Mascheroni constant = gamma = gamma. - In Affinity e 's usage is probably more meant for APh equation filters, or they have forgotten to set it up globally for input fields.

☛ Affinity Designer 1.10.8 ◆ Affinity Photo 1.10.8 ◆ Affinity Publisher 1.10.8 ◆ OSX El Capitan
☛ Affinity V2.3 apps ◆ MacOS Sonoma 14.2 ◆ iPad OS 17.2

Link to comment
Share on other sites

7 hours ago, PepGold said:

Also weird that w=width and h=height aren't available when creating a grid in the Grid and Snapping Axis window. 

I am not sure I understand what you mean. That spacing would "w" represent the width of, the entire document or something else?

All 3 1.10.8, & all 3 V2.4.1 Mac apps; 2020 iMac 27"; 3.8GHz i7, Radeon Pro 5700, 32GB RAM; macOS 10.15.7
Affinity Photo 
1.10.8; Affinity Designer 1.108; & all 3 V2 apps for iPad; 6th Generation iPad 32 GB; Apple Pencil; iPadOS 15.7

Link to comment
Share on other sites

Yes, would be nice as formula, e.g. w/8

in some instances, you may need to use sw (spread width) instead of w, but for grid no constants/ variables are allowed 

Mac mini M1 A2348 | Windows 10 - AMD Ryzen 9 5900x - 32 GB RAM - Nvidia GTX 1080

LG34WK950U-W, calibrated to DCI-P3 with LG Calibration Studio / Spider 5

iPad Air Gen 5 (2022) A2589

Special interest into procedural texture filter, edit alpha channel, RGB/16 and RGB/32 color formats, stacking, finding root causes for misbehaving files, finding creative solutions for unsolvable tasks, finding bugs in Apps.

 

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
×
×
  • Create New...

Important Information

Terms of Use | Privacy Policy | Guidelines | We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.