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~
VctA. VctB (Vector dot product)
VCTm
@VctAt!!!I ([J(VECTOR)IL)(Dot)VctB@
I
VetA'VetB
h
VctA x VctB (Vector cross product)
@VctAOOVctB@ I.......
Obtain the absolute values of VctC.
VCTm
@t!!!I ffiii)(Abs)VctCQ) @
I
Abs(VetC)
h.
Determine the angle formed by VctA and VctB to three decimal
places (Fix 3).
lEI
(A.B)
.
. (A.B)
(cos 6
=
IAIIBI ,which becomes 6
=
cos-
IAIIBI)
1!!1!I@2ffi(SETUP)[ID(Fix)!I)
@mVctA@ij)([J(VECTOR)IL)(Dot)VctBIJ)IE
VCTm fIX
m
t!!!I
ffiii)(Abs)VctAIJ)
@iiJffiii)(Abs)
I
(VetA'
VctB)..(Ab~
VctBIJ)Q)@
0.984
YCTm
nx
@iiJ l§j(cos")1!;)
IJ) @
I
cos-I(Ans)
10.305
~gu~liiyC!lc..u!at1O"n$(i)lI!Qf
.....
2~
You can use the following procedure to solve a quadratic inequality or cubic
inequality.
,. Press @2ffi<i)CD(INEQ)to enter the INEQ Mode.
2. Onthe menu that appears, select an inequality
type.
To select this Inequality type:
Press this key:
Quadraticinequality
m (aX' + bX+c )
Cubicinequality
m (aX' + bX' + cX+ d )
3. Onthe menuthat appears, use keys CDthroughI1Jto selectthe inequality
symboltype and orientation.
4. Use the Coefficient E drtorthat appears to inputcoefficient v alues.
.
To solve x' + 2x
-
3 < 0, for example,
input the coefficients
a = I, b = 2,
c =-3 bypressing 1@2 @!El3@.
E-43
.
To change a coefficient value you already have input, move the cursor
to the appropriate cell, input the new value, and then press @.
.
Pressing @ will clear all of the coefficients to zero.
Note: The following operations are not supported by the Coefficient Editor:
!iE), t!!!IlMB(M-),I!!1!II§)(STO). Pol, Rec, +R, and multi.statements also
cannot be input with the Coefficient Editor.
5. After all the values are the way you want, press @.
.
This will display
the solutions.
.
To return to the Coefficient
Editor while the solutions
are displayed,
press
@.
Note: Values cannot be converted to engineeringnotationon the solution
screen.
Changing
the Inequality
Type
Press @2ffi<i)CD(INEQ) and Ihen select an inequality type from the menu
thatappears. Changingthe inequality
type causes the values of all Coefficient
Editor coefficients
to change to zero.
INEQ Mode Calculation Examples
/
x'+2x-3<0
rmm
1
1: aX2 +bX+C >°
@!ID<i)CD(INEQ)CD(aX'+ bX + c)
2:aX2+bX+c<O
3:aX2+bX+c;'O
4: aX2+bX+C=0
m(aX' + bX+ c < 0)
m
NItti
~
b. cUI
aX2+bX+c<O
o
m
...
I · I b .~)
aX2+bX+c<O
-3
m
@ .A<X<B
-3<X<
1
Note: Solutions are displayed as shown
here when Linear Display is selected.
-3
1
/
x'+2x-3;;;
0
rmm
@2ffi<i)CD(INEQ)CD(aX'+bX+c)
!I) (aX' + bX + c ;: 0)
1 @2@!El3@
m
...
I' I b ~)
aX2+&X+C~O
-3
m
Math
X~-3. HX
'E-44
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