TI Nspire ii (non CAS)
12-23-2019, 08:01 PM
Post: #1
 lrdheat Senior Member Posts: 555 Joined: Feb 2014
TI Nspire ii (non CAS)
How complete is the complex number support on the non CAS TI Nspire ii ? If one takes ASIN of 2, does it throw an error, or display the complex result?
12-23-2019, 11:20 PM (This post was last modified: 12-23-2019 11:28 PM by ijabbott.)
Post: #2
 ijabbott Senior Member Posts: 833 Joined: Jul 2015
RE: TI Nspire ii (non CAS)
The reference guide shows an example with a complex matrix result for the matrix inverse sine of a square matrix, so I should think it should also be able to handle the inverse sine of a real or complex scalar.

— Ian Abbott
12-24-2019, 11:55 AM
Post: #3
 Pekis Member Posts: 104 Joined: Aug 2014
RE: TI Nspire ii (non CAS)
(12-23-2019 11:20 PM)ijabbott Wrote:  The reference guide shows an example with a complex matrix result for the matrix inverse sine of a square matrix, so I should think it should also be able to handle the inverse sine of a real or complex scalar.

Exactly like in the TI 86, TI 89, both machines without Complex mode if I remember
12-31-2019, 09:02 AM
Post: #4
 Wes Loewer Member Posts: 234 Joined: Jan 2014
RE: TI Nspire ii (non CAS)
(12-23-2019 08:01 PM)lrdheat Wrote:  How complete is the complex number support on the non CAS TI Nspire ii ? If one takes ASIN of 2, does it throw an error, or display the complex result?

TI-nspire CX II (non-cas), OS ver 5.1.0
In Real Mode asin(2) pops up an error message box that says:
Quote:Non-real calculation

For example, if the software is in the Real setting, √(-1) is invalid.
To allow complex calculations, change the "Real or Complex" Mode Setting to RECTANGULAR or POLAR.
and then returns: "Error: Non-real calculation"

In Rectangular, Radians mode, it returns 1.5707963267949-1.3169578969248*i

In Rectangular, Degrees/Gradians mode it pops up an error message box that says:
Quote:Domain error

An argument must be in a specified domain.
and then returns: "Error: Domain error"
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