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HP-50g Problem writing complex number. How to write ( 3 + i * 3*sqr(3) ) in RPN? (3, i3sqr(3)) (276 Views)
Honor Student
Posts: 4
Registered: ‎12-08-2011
Message 1 of 3 (276 Views)

# HP-50g Problem writing complex number. How to write ( 3 + i * 3*sqr(3) ) in RPN? (3, i3sqr(3))

Hello all, I do not know how to write ( 3 , i * ( 3 * sqr( 3 ) ) ) in RPN mode.

Thankyou.

Teacher
Posts: 183
Registered: ‎08-10-2010
Message 2 of 3 (268 Views)

# Re: HP-50g Problem writing complex number. How to write ( 3 + i * 3*sqr(3) ) in RPN? (3, i3sqr(3))

Hi,

A few notes when representing a complex number as a vector:

1)  the i is omitted, the second number is assumed to be the imaginary part.

2) the 50g only accepts decimals for vector representation

So, to input it. I assume you have the calculator in Complex mode and Exact mode (Approx not ticked in "MODE" -> "CAS"), i.e. "C=" displayed on top of the screen.

In RPN mode:

Press  3 then ENTER (3 is on level 1 )

Press ENTER again (3 is now duplicated and on both level 1 and 2 - an advantage of RPN)

Press ENTER again (3 is now duplicated and on levels 1, 2 and 3)

Press the SQRT(X) button. Level 1 shows a 3 with a square root sign.

Press multiply key, level 1 shows 3·SQRT(3)

Press LeftShift (white) then i (above TOOL key), level 1 shows an i

Press multiply key, level 1 shows 3·SQRT(3)·i

Press + key, level 1 shows 3+3·SQRT(3)·i  (or 3·SQRT(3)·i+3 depending on Flag -27 setting)

If you wish to keep the symbolic result (with "SQRT" symbol), leave it in this form, if you wish to convert it to vector form press RightShift (red) then ->NUM (above ENTER key).

The result will be a decimal vector form, (3.,5.19615242271).

Regards,

BartdB

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Honor Student
Posts: 4
Registered: ‎12-08-2011
Message 3 of 3 (264 Views)

# Re: HP-50g Problem writing complex number. How to write ( 3 + i * 3*sqr(3) ) in RPN? (3, i3sqr(3))

Ok that answered my question, thankyou very much =)

I was trying to do this with the ( )

Thanks.