Lesson 9: arithmetic with symbols, 1 mrniigggirniictkiatiiiiiiiiiihjiim, 1= 'expc-a*x) – HP 48G User Manual
Page 37: Easmera;iikiiahbsbnabi»iiim3iro, L-ekpc-a*x), 'y=l-ekpc-a*>i), Lesson 9; arithmetic with symbols -9, Izd q
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Lesson 9: Arithmetic with Symbols
Arithmetic using syml:)olic variables is very nnich like arithmetic using
numbers. You can make symbolic calculations on the stack the same
way
you make numeric
calculations-..........except
you use algebraic objects
(and tick-mark delimiters) instead of just numbers.
Example:
I'se symbolic math to create the equation j/ = 1 — c
S t e p 1 :
Enter
y
and the number 1.
CJ QDS)'' (
enter
) 1 (EiYirEI^
' 4 '
1:
1
mrniigggirniiCTKiaTiiiiiiiiiiHjiim
S t e p 3 :
Enter the argument
— a x .
IZD Q ®
®
ENTER
Q:
- a * x ‘
103313
S t e p 3 :
Calculate
3 :
'
m
'
2 :
' 1
1=
'EXPC-a*x)'
Easmera;iiKiiaHBSBnaBi»iiim3iro
S t e p 4 -
Sulrtract to calculate 1 — r
Q
ly '
'l-EKPC-a*x)'
E8ar.iiB!im'iEKgiaHEi3iaiii'iiiiminm
S t e p 5 :
Form an equation
from
the two
expressions.
1:
'y=l-EKPC-a*>i)'
Arithmetic 3-9