Number of Variables allowed in R

Hi,

Can someone please tell me the maximum number of independent variables
allowed in R for non linear regression.

I have 50 independent variables and want to calculate non linear models to
the power of 9 but R is unable to process it beyond to the power of 3 which
means its taking maximum 150 independent variables for its calculation.

Also, it would be great if someone could guide me as to how I can achieve
the above in R.

Regards,
Mitul

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