diff --git a/package.json b/package.json
index 5970507..b602c50 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "zk3d",
-  "version": "0.0.9",
+  "version": "0.12.0",
   "description": "General-purpose 3D library compatible with o1js and Mina zkApps.",
   "type": "module",
   "main": "build/src/index.js",
diff --git a/src/Matrix4.ts b/src/Matrix4.ts
index 02f7e41..fe21092 100644
--- a/src/Matrix4.ts
+++ b/src/Matrix4.ts
@@ -514,24 +514,25 @@ export class Matrix4 extends Struct({
     );
   }
 
-  fromArray(array: Real64[]) {
-    this.n11 = array[0];
-    this.n12 = array[1];
-    this.n13 = array[2];
-    this.n14 = array[3];
-    this.n21 = array[4];
-    this.n22 = array[5];
-    this.n23 = array[6];
-    this.n24 = array[7];
-    this.n31 = array[8];
-    this.n32 = array[9];
-    this.n33 = array[10];
-    this.n34 = array[11];
-    this.n41 = array[12];
-    this.n42 = array[13];
-    this.n43 = array[14];
-    this.n44 = array[15];
-    return this;
+  static fromElements(array: Real64[]) {
+    return new Matrix4({
+      n11: array[0],
+      n12: array[1],
+      n13: array[2],
+      n14: array[3],
+      n21: array[4],
+      n22: array[5],
+      n23: array[6],
+      n24: array[7],
+      n31: array[8],
+      n32: array[9],
+      n33: array[10],
+      n34: array[11],
+      n41: array[12],
+      n42: array[13],
+      n43: array[14],
+      n44: array[15]
+      });
   }
 
   toArray() {
diff --git a/src/Real64.ts b/src/Real64.ts
index 83d736d..56850a2 100644
--- a/src/Real64.ts
+++ b/src/Real64.ts
@@ -20,7 +20,7 @@ export class Real64 extends Struct({ integer: Int64 }) {
   }
 
   inv() {
-    return new Real64({ integer: Int64.from(Real64.SCALE).div(this.integer) });
+    return new Real64({ integer: Int64.from(Real64.SCALE).mul(Real64.SCALE).div(this.integer) });
   }
 
   neg() {