Relief of Complex Gamma Fcn — was this hand drawn?

AI Thread Summary
The discussion centers around a vintage text titled "Tables of Higher Functions," which features hand-drawn mathematical plots. The contributor expresses curiosity about the origin of these illustrations, speculating that they may have been created by an artist with a mathematical background or a skilled draftsman. The timing of the book's publication is considered relevant to understanding the drawing techniques used. A reference is made to Charles Minard's famous Napoleon chart as an example of high-quality hand-drawn charts. Additionally, there is mention of Mathegraphix, a software program for creating mathematical plots, suggesting that the author might have used it for the illustrations in the text. Overall, the conversation highlights the intersection of art and mathematics in historical publications.
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This pic is from an older text called Tables of Higher Functions (interestingly both in German first then English second) that I jumped at buying from some niche bookstore for $40. Was this hand drawn? I think I’ve seen was it that mathegraphix or something like that linked by @fresh_42 somewhere on PF that had an example plot similar to these.
 
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I guess it depends on when the book was published, but my guess is it was hand drawn by an artist versed in math or at the direction of a mathematician. Or a draftsman drew it getting the perspective accurate.

As an example of the quality of hand-drawn charts here's Charles Minard's famous Napoleon chart:

https://datavizblog.files.wordpress.com/2013/05/map-full-size1.png

But I could be wrong about it too.
 


Yes, it looks like this was hand drawn. Mathegraphix is a software program that allows for the creation of mathematical plots, so it's possible that the author used that program to create the plots in this text. The style does look similar to what I've seen from Mathegraphix.
 
Historian seeks recognition for first English king https://www.bbc.com/news/articles/c9d07w50e15o Somewhere I have a list of Anglo-Saxon, Wessex and English kings. Well there is nothing new there. Parts of Britain experienced tribal rivalries/conflicts as well as invasions by the Romans, Vikings/Norsemen, Angles, Saxons and Jutes, then Normans, and various monarchs/emperors declared war on other monarchs/emperors. Seems that behavior has not ceased.

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