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# 2025-12-02
# 2025-12-02 10:40:??
#topic/construction/electrical
> [!cite] [Hysteresis - Wikipedia](https://en.wikipedia.org/wiki/Hysteresis)
> **Hysteresis** is the dependence of the state of a system on its history.
> For example, a [magnet](https://en.wikipedia.org/wiki/Magnet "Magnet")
> may have more than one possible
> [magnetic moment](https://en.wikipedia.org/wiki/Magnetic_moment "Magnetic moment")
> in a given [magnetic field](https://en.wikipedia.org/wiki/Magnetic_field "Magnetic field"),
> depending on how the field changed in the past.
> Such a system is called **hysteretic**.
![[alternating-current#Ferroelectric Hysteresis]]
# 2025-12-02 10:57:??
### Set Notation Example
Let $A$ and $B$ be sets
sharing some but not all elements.
* $A \cap B \neq \varnothing$:
"The intersection of $A$ and $B$ is nonempty"
(They share at least one element).
* $A \not\subseteq B$:
"$A$ is not a subset of $B$"
($A$ has at least one element not in $B$).
Equivalent to $A \setminus B \neq \varnothing$.
* $B \not\subseteq A$:
"$B$ is not a subset of $A$"
($B$ has at least one element not in $A$).
Equivalent to $B \setminus A \neq \varnothing$.
# 2025-12-02 13:20:??
### Panel Schedule Relationship Diagram
#### Sections
A panelboard with multiple sections
may or may not have multiple schedules.
`PANEL A1 SEC 1`
#### Typical Schedules
Schedules may be typical of multiple panelboards
`PANEL H(2-6)`
# 2025-12-02 15:35:??
### Bluebeam Model Context Protocol Tools
* add_view_port
* color_process_analyze
* color_process_modify
* count
* create_bookmarks
* create_markup_thumbnail
* get_markup_state
* get_page_count
* get_page_information
* list_markups_in_pdf
* list_state_models_in_pdf
* list_studio_projects
* list_studio_sessions
* open_file
* redact
* save_as_text
* search_and_markup
* set_markup_property
* set_markup_state
* set_page_labels
* stamp
* studio_project_search