@@ -0,0 +24,4 @@
+     *
+     * @param offset Index of the diagonal: 0 (the default) refers to the main diagonal, a positive value refers to an upper diagonal, and a negative value to a lower diagonal.
+     */
+    fun triangle(dim1: Int, dim2: Int, offset : Int = 0) = NDElement.real2D(dim1, dim2){i, j -> if (i <= j + offset) 1.0 else 0.0}

@@ -0,0 +71,4 @@
+     */
+    fun logspace(range : Pair<ClosedFloatingPointRange<Double>,Int>, endPoint: Boolean = true, base : Double = 10.0)  : RealNDElement {
+        val lin = linspace(range, endPoint).first
+        val fun_ = {x: Double -> power(base, x)}