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| M_air | M_air |
| M_air_excl | m_air |
| M_excl | M_excl |
| nps.invalid | M_Invalid |
| nps.necessary | testIc |
| nps.test | Main function of the package. |
| nps.valid | nps.valid |
| product_fraction | Reduces out factors of fraction of products and calculates the fraction Analog to prod(num)/prod(den) |