diff --git a/media/src/objects/Point.svelte b/media/src/objects/Point.svelte
index 33a15952..de895eac 100644
--- a/media/src/objects/Point.svelte
+++ b/media/src/objects/Point.svelte
@@ -50,11 +50,14 @@
     let tau = $state(0);
     let t0 = $derived(math.parse(params.t0 ?? '0').evaluate());
     let t1 = $derived(math.parse(params.t1 ?? '1').evaluate());
+
+    // $inspect(t1);
+
     let tVal = $derived(t0 + tau * (t1 - t0));
     let displayTVal = $derived(tVal.toFixed(2));
 
-    let N0 = $derived(math.parse(params.n0 ?? '0').evaluate());
-    let N1 = $derived(math.parse(params.n1 ?? '0').evaluate());
+    let N0 = $derived(math.parse(params.n0.toString() ?? '0').evaluate());
+    let N1 = $derived(math.parse(params.n1.toString() ?? '0').evaluate());
 
     let last;
 
@@ -277,7 +280,7 @@
                             Number.isFinite(math.parse(val).evaluate())}
                         value={params[name]}
                         {name}
-                        oncleared={(val) => {
+                        cleared={(val) => {
                             params[name] = val;
                         }}
                     />
diff --git a/media/src/objects/Vector.svelte b/media/src/objects/Vector.svelte
index 8a4d3093..31991e47 100644
--- a/media/src/objects/Vector.svelte
+++ b/media/src/objects/Vector.svelte
@@ -71,8 +71,8 @@
 
     let last = null;
 
-    let N0 = $derived(math.parse(params.n0 ?? '0').evaluate());
-    let N1 = $derived(math.parse(params.n1 ?? '0').evaluate());
+    let N0 = $derived(math.parse(params.n0.toString() ?? '0').evaluate());
+    let N1 = $derived(math.parse(params.n1.toString() ?? '0').evaluate());
 
     const arrowMaterial = new THREE.MeshPhongMaterial({
         color: color,
@@ -382,6 +382,7 @@
                     class="form-control form-control-sm box-4"
                     type="number"
                     bind:value={params.n1}
+                    min={params.n0}
                     name="n1"
                 />
             {/if}