Determinant example in help fails in CAS

[toml_12953]

(08-01-2020 07:14 AM)robmio Wrote:  Hi, grsbanks. In fact they are both built by the same codebase (at least I suppose that's the case). However, why can't the HP PRIME G2 calculator ("physical" version with firmware 20200121) calculate the following operation (see post: "Error with exp function and imaginary numbers")?

cos(1e49) -> 0.70354916584 (virtual calculator)

cos(-1e49) -> -Inf (HP PRIME G2 "hardware", firmware 20200121).

I cordially greet you, Roberto.

What angular units are you using? Here's what I get on physical calc:

Home
Deg: COS(1e49) = 0.173648177667
Rad: COS(1e49) = 0.814097070848
Grd: COS(1e49) = 1

CAS
Deg: cos(1e49) = +Inf
Rad: cos(1e49) = +Inf
Grd: cos(1e49) = +Inf