diff --git a/d3/superformula.ts b/d3/superformula.ts
new file mode 100644
index 000000000..bb1703c14
--- /dev/null
+++ b/d3/superformula.ts
@@ -0,0 +1,39 @@
+
+interface ID3superformulaPath
+{
+    superformulaPath(params: number[], n: number, diameter: number): ID3superformula;
+}
+
+
+interface ID3superformulaType
+{
+    (any): any;//hans
+    m: number;
+    n1: number;
+    n2: number;
+    n3: number;
+    a: number;
+    b: number;
+}
+
+interface ID3superformula
+{
+    (): any;  
+    type(any): any;
+    param(name: string, value: number): ID3superformula;
+    size(x: number): ID3superformula;
+    segments(x: number): ID3superformula;
+}
+interface ID3Selectors
+{
+
+}
+
+
+interface ID3Base extends ID3Selectors
+{
+    keys: ID3superformulaType[];
+    superformula: ID3superformula;
+    superformulaPath: ID3superformulaPath;
+    superformulaTypes: ID3superformulaType[];
+}