How do I get the constant "e" ?

[batx27]

Hey everyone,
I'm learning pre-calc currently, and I've been trying to figure how to use the constant "e", which is valued at around 2.7...... I would use the value itself, but its too long and I get really confused with more numbers.

On my Ti 84, there's a button called "e^y", which uses the constant "e". I can't find it on my hp prime G2. I used the regular letter e but that did not work. Is there an "e" on the Hp prime g2?

[Didier Lachieze]

(12-24-2023 09:08 AM)batx27 Wrote:  Is there an "e" on the Hp prime g2?

[Shift] [LN]

[Wes Loewer]

(12-24-2023 09:11 AM)Didier Lachieze Wrote:  

(12-24-2023 09:08 AM)batx27 Wrote:  Is there an "e" on the Hp prime g2?

[Shift] [LN]

[Shift][LN] gives you the e^x function.

If you just want e, just use the lowercase e character. In Home use [ALPHA][SHIFT][E]. In CAS, just [ALPHA][E].

[Albert Chan]

(12-24-2023 09:08 AM)batx27 Wrote:  I used the regular letter e but that did not work.

It does work.
CAS side, enter e simply returns e, but CAS knows e = 2.718...

CAS> e               → e
CAS> float(e)      → 2.71828182846
CAS> e := 1        → "sto e not allowed! Error: Bad Argument Type"

[ijabbott]

If I could go back in time, I would petition to use a different symbol such as ε for Euler's number. Perhaps ε already had its current meaning when e was adopted?

[batx27]

Thank you very much guys. I found it