... transfer TI-Nspire CX Navigator portfolio and roster files? To locate TI-Nspire CX Navigator roster and portfolio files, please browse to the directory location listed below using the steps that match your operating system.
Please Note: Make sure the TI-Nspire CX Premium Teacher Software is clo... https://education.ti.com/en/customer-support/knowledge-base/ti-nspire-navigator/product-usage/30631
...rs.
The main problem is tan(-5*π/4). The TI-83 Plus and TI-84 Plus family of graphing calculators only perform calculations with 14 digits in the memory, the calculation of tan (-5*π/4) loses some accuracy on the last digit. Internally, the answer of tan(-5*π/4) is not -1 but something like -1.00... https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34616
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