Stock and Flow with Auxiliary Variables #546
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quffaro
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Jul 8, 2025
packages/catlog-wasm/src/theories.rs
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| /// Simulates the mass-action system derived from a model. | ||
| #[wasm_bindgen(js_name = "mass_action")] | ||
| pub fn mass_action( |
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Remove for now until we have an idea about semantics for system structure diagrams with auxiliary: the existing mass action semantics will not use the auxiliary variables at all.
| ustr("Outflow"), | ||
| TabObType::Basic(x), | ||
| th.tabulator(th.hom_type(TabObType::Basic(x))), | ||
| ); |
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As we discussed today, these "inflows" and "outflows" are actually new kinds of links. We decided to punt on inflows/outflows until our theories can be souped up to handle terminal objects.
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This PR introduces an extension of Stock and Flow with auxiliary variables, an object which acts as a functions of quantities of stocks connected to it by variable links. The auxiliary variable acts on flows by a flow link. This effort implements the theory and frontend partially completed in #537, whereas the simulation work will be punted to a new PR.