I'm wondering if it's possible to define a natural variable n in TI-Nspire CAS. For example I'd like to write:
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1
You can't define your own natural variables. However, Nspire has the following special variables you can use:
- @n0...@n255: Restricted to natural numbers
- @c0...@c255: Restricted to real numbers
You can replace the original variables with them by hand or for convience just put |x=@n0 and y=@n1 at the end of line.
Example: You are calculating fourier coefficients and know that variable k will only get real numbers from Σ operation. Replacing k with @n1 will simpilfy the function. Picture
(Calculator needs to be in RAD mode if you want to try)
于 2022-02-20T21:53:33.637 回答
0
The answer is no. Variables in NSpire store a value. A variable has no type. Solve might return @n1 in a result to indicate an arbitrary natural number, but you can tell solve to look for integer solutions only.
于 2022-01-25T16:38:33.847 回答