Initial data commit

Task/Runtime-evaluation/Maxima/runtime-evaluation.maxima

@@ -0,0 +1,17 @@
+/* Here is how to create a function and return a value at runtime. In the first example,
+the function is made global, i.e. it still exists after the statement is run. In the second example, the function
+is declared local. The evaluated string may read or write any variable defined before eval_string is run. */
+
+kill(f)$
+
+eval_string("block(f(x) := x^2 + 1, f(2))");
+5
+
+fundef(f);
+/* f(x) := x^2 + 1 */
+
+eval_string("block([f], local(f), f(x) := x^3 + 1, f(2))");
+9
+
+fundef(f);
+/* f(x) := x^2 + 1 */