exponents, HP50g

[tigger]

Sometimes I get weird results which look like
e^(h²*e^(n*ln H))
which is equal to
e^(H²*H^N)

Could the HP50g simplify this first result itself? What would be the key-sequence to make the HP50g simplify the result?

Sorry I can not make a photo of the display. Hope it is understandable.

[Joe Horn]

(09-05-2015 03:12 PM)tigger Wrote:  Sometimes I get weird results which look like
e^(h²*e^(n*ln H))
which is equal to
e^(H²*H^N)

Could the HP50g simplify this first result itself? What would be the key-sequence to make the HP50g simplify the result?

The command you want is EXP2POW (exponential to power). The key sequence is left-shift 6 (CONVERT), F4 (REWRITE), F3 (EXP2POW).

I personally find the tiny program << TSIMP EXP2POW >> to be so helpful for simplifying messy algebraic expressions with exponentials in them, that I keep it assigned to a key.

[tigger]

great,
thanks,
it works

[tigger]

(09-05-2015 05:52 PM)tigger Wrote:  great,
thanks,
it works

How can I find the program << TSIMP EXP2POW >>?

[brickviking]

(09-05-2015 06:15 PM)tigger Wrote:  How can I find the program << TSIMP EXP2POW >>?

TSIMP is found on the calculator. EXP2POW is also on the calculator. The statement

Code:


<< TSIMP EXP2POW >>

is the program you would run, presumably you'd have an expression in the stack first.

Look up how to write a program in UserRPL, in Chapter 21 in the UserGuide. Some of the chapter may refer to earlier material in the book.

(Post prime 7)

Regards, BrickViking