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-rw-r--r--tests/general_tests/intfminunc/intfminuc_gradient1.sce19
1 files changed, 19 insertions, 0 deletions
diff --git a/tests/general_tests/intfminunc/intfminuc_gradient1.sce b/tests/general_tests/intfminunc/intfminuc_gradient1.sce
new file mode 100644
index 0000000..93c3c7d
--- /dev/null
+++ b/tests/general_tests/intfminunc/intfminuc_gradient1.sce
@@ -0,0 +1,19 @@
+
+// Check if a user specifies correct format of gradient function or not
+
+function [y] = f(x)
+y = -x(1)^2 - x(2)^2;
+endfunction
+
+x0=[2,1];
+intcon = [1]
+options = list("gradobj","Fn");
+
+// !--error 999
+// Unknown string passed in gradobj.
+// at line 200 of function intfminunc called by :
+// [xopt,fopt,exitflag,gradient,hessian]=intfminunc(f,x0,intcon,options)
+// at line 8 of exec file called by :
+// exec intfminuc_gradient1.sce
+
+[xopt,fopt,exitflag,gradient,hessian]=intfminunc(f,x0,intcon,options)