What is this part of a graph on the axis called?

[iantresman]

TL;DR Summary

What is the zigzag mark on the axis of a graph called?

On this graph on the Y-axis just above the origin is a "zigzag" mark (highlighted with the red circle) which represents a discontinuity as the value of Y jumps from 0 to 130. Does this mark have a formal name?

 

[fresh_42]

No.

 

[FactChecker]

An axis break can be indicated using a variety of symbols, a squiggle, a Z, slanted parallel lines, etc. If you Google "graph axis break symbology", you can see a variety of symbols used.

 

[berkeman]

Summary:: What is the zigzag mark on the axis of a graph called?

Does this mark have a formal name?

I believe it is now called the "Tresman mark".

 

[jedishrfu]

Other sources mention calling it a break, axis break or graph break with one calling it a caesura which means a cutting in Latin.

https://english.stackexchange.com/q...e-is-a-break-in-content-or-a-break-in-a-graph

I would go with caesura because it sounds cool and academic like and we get to remind people that Latin is not dead it is merely resting and waiting for the time to come to greatness.

 

[fresh_42]

I believe it is now called the "Tresman mark".

Nope. It's direct current resistance.

 

[DaveC426913]

No.

Oh. This was less funny than I thought it was.

I thought you were saying "It's called the nope".

 

[DaveC426913]

Google "graph axis break symbology"

This was a fruitful search.

It yielded axis break and scale break. Also caesura.