Simplest circuit

assets/math.js

@@ -0,0 +1,39 @@
+function defineVars(vars) {
+    const data = new Map(vars);
+
+    window.addEventListener('DOMContentLoaded', () => {
+        const mathVars = document.querySelectorAll('span.katex span.mord.mathnormal');
+
+        mathVars.forEach(el => {
+            for (const [v, help] of data.entries()) {
+                if (el.textContent == v) el.setAttribute('title', help);
+            }
+        });
+    });
+}
+
+function plot(target, fn, deps) {
+    const depsEl = deps.map(document.querySelector.bind(document));
+    const plot = () => {
+        functionPlot({
+            target,
+            width: 600,
+            height: 400,
+            yAxis: { domain: [-1, 9] },
+            grid: true,
+            data: [
+                {
+                    fn: fn(...(depsEl.map(el => el.value)))
+                }
+            ]
+        });
+    }
+
+    depsEl.forEach(el => {
+        el.addEventListener((el.tagName == 'INPUT' && el.type == 'range' ? 'mousemove' : 'change'), plot);
+    });
+
+    plot();
+}
+
+Object.assign(window, {defineVars, plot});