A Different Way to Solve Quadratic Equations

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A Different Way to Solve Quadratic Equations

04-02-2021, 08:36 PM (This post was last modified: 04-03-2021 09:28 AM by floppy.)

Post: #2

floppy Offline

Senior Member

Posts: 343
Joined: Apr 2021

RE: A Different Way to Solve Quadratic Equations

my RPN HP41 way..

Quote:LBL 'RAC'
RDN
CHS
ST/ Z
ST+ X
/
STO Z
STO T
X^2
+
SQRT
ST- Z
+

solving a.X² +b.X+c = 0 ?

Quote:c
ENTER
b
ENTER
a
ENTER
XEQ "RAC"

The results X1 and X2 are in the stack X and Y.
Only solution in complex? error will appear.

HP71 4TH/ASM & Multimod, HP41CV/X & Nov64d, PILBOX, HP-IL 821.62A & 64A & 66A, Deb11 64b-PC & PI2 3 4 w/ ILPER, VIDEO80, V41 & EMU71, DM41X, HP75D

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RE: A Different Way to Solve Quadratic Equations - floppy - 04-02-2021 08:36 PM

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