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diff --git a/tests/general_tests/fmincon/fmincon_logical18.sce b/tests/general_tests/fmincon/fmincon_logical18.sce
new file mode 100644
index 0000000..9fdd9d6
--- /dev/null
+++ b/tests/general_tests/fmincon/fmincon_logical18.sce
@@ -0,0 +1,14 @@
+// Example with log objective function, inequality constraints
+
+function y=fun(x)
+   y = sum(log(x(i)))
+endfunction
+
+x0 = repmat(1,1,20);
+lb = repmat(0,1,20);
+ub = repmat(10,1,20);
+
+A=[-1,-5,-3 repmat(0,1,17); -0.5,-2.5 -1.5 repmat(0,1,17);];
+b=[-100 -50]';
+
+[xopt,fopt,exitflag,output,lambda,gradient,hessian] = fmincon (fun, x0,A,b,[],[],lb,ub)