HP 40gs hp 40gs_user's guide_English_E_HDPMSG40E07A.pdf - Page 281
First method
UPC - 882780045217
View all HP 40gs manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 281 highlights
hp40g+.book Page 7 Friday, December 9, 2005 1:03 AM First method 1. Find the exact length of AB in centimetres. 2. Determine the equation of the line AB. Type: STORE((-1,3),A) and press . Accept the change to Complex mode, if necessary. Note that pressing returns the coordinates in complex form: -1+3i. Now type: STORE((-3,-1),B) and press . The coordinates this time are represented as -3+-1·i. The vector AB has coordinates B - A. Type: (B - A) Press 2 5. . The result is Now apply the DROITE command to determine the equation of the line AB: Complex DROITE A B Pressing gives an intermediate result. Step-by-Step Examples 16-7
Step-by-Step Examples
16-7
1.
Find the exact length of
AB
in centimetres.
2.
Determine the equation of the line
AB
.
First method
Type:
STORE((-1,3),A)
and press
.
Accept the change to
Complex
mode, if
necessary.
Note that pressing
returns the coordinates in
complex form: –1+3i.
Now type:
STORE((-3,-1),B)
and press
.
The coordinates this time are represented as –3+–1·i.
The vector AB has coordinates B – A.
Type:
(B - A)
Press
. The result is
.
Now apply the
DROITE
command to determine the
equation of the line
AB
:
Complex
DROITE
A
B
Pressing
gives an
intermediate result
.
2
5
hp40g+.book
Page 7
Friday, December 9, 2005
1:03 AM