Modifying Namespace to work in Objective C

I just purchased a linear regression from CodeCogs which uses Namespace twice, giving me a compile error in Objective C.

Any suggestions on how to get around this error?

The code is:

namespace Maths
{
 
namespace Regression
{

What error do you see in Objective C ?

If its a major issue you simply remove the namespaces. The main reason for them being in it to eliminate clashed between different functions that might use the same names.