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Computer Algebra System and Tutorial Modes Menu Command Input
Rational simplification
(CAS,ALGEBRA,TUTOR mode)
Reduces a fraction.
CAS; [F1](TRNS)[7](combin)
ALGEBRA; [F1](TRNS)[6](combin)
TUTOR; [F1](TRNS)[5](combin)
combine( expression [ ) ]
combine( equation [ ) ]
combine( inequality [ ) ]
1. To reduce the fraction (X+1)/(X+2)+X(X+3)
[F1](TRNS)[7](combin)
[(][X][+][1][)][(][X][+][2][)]
[+][X][(][X][+][3][)][EXE]
2. combine( (A+X2)/C2 + X/2 ) (2X2+2A+C2X)/(2C2)
Recall equation
(CAS,ALGEBRA,TUTOR mode)
Recalls multiple eqn memory contents.
CAS,ALGEBRA; [F3](EQUA)[2](rclEqn)
TUTOR; [F2](EQUA)[1](rclEqn)
rclEqn( Sequential number of equation/inequality [ , Sequential number of equation/inequality ... ] [ ) ]
1. When "2X+3Y=7" is labeled as eqn(2) and "-5X+3Y=15" is labeled as eqn(3);
relEqn( 2, 3 ) 2X+3Y=7
-5X+3Y=15
2. When "2X+3Y>7" is labeled as eqn(2) and "-5X+3Y<15" is labeled as eqn(3);
rclEqn( 3 ) -5X+3Y<15
Recall all equations
(CAS,ALGEBRA,TUTOR mode)
Recall all eqn memory contents.
CAS,ALGEBRA; [F3](EQUA)[3](rclAll)
TUTOR; [F2](EQUA)[2](rclAll)
rclAllEqn
1. When "2X+3Y+Z=7" is labeled as eqn(1), "-5X+3Y-2Z=15" is labeled as eqn(2) and "3X-5Y+2Z=9" is labeled as eqn(3);
rclAlleqn 2X+3Y+Z=7
-5X+3Y-2Z=15
3X-5Y+2Z=9
* display all labeled equations as the natural form
Replace adjustment (ALGEBRA mode)
Replaces a variable with the expression assigned to the corresponding Expression variable.
[F1](TRNS)[A]
replace( expression [ ) ]
replace( equation [ ) ]
replace( inequality [ ) ]
1. When "2X+1" is defined as variable S;
replace( 3X+2S) 3X+2(2X+1)
simplify( 3X+2(2X+1) ) 7X+1
2. When "A-1" is defined as variable X and "3B+5" is defined as variable Y;
replace( X+Y=XY ) (A-1)+(3B+5)=(A-1)(3B+5)
simplify( (2A-1)(3B+5) ) A+3B+4=3AB+5A-3B-5
3. When "2X-5" is defined as variable Y;
replace( 2X+Y>Y2 ) 2X+(2X-5) > (2X-5)2
simplify( 2X+(2X-5)>(2X-5)2 4X-5 > 4X2-20X+25
4. When "2S-T" is defined as variable X and "T+5" is defined as variable S;
replace( 3X ) 3(2S-T)
replace( 3(2S-T) ) 3(2(T+5)-T)
simplify( 3(2(T+5)-T) ) 3T+30
Rewrite (CAS,ALGEBRA mode)
Moves the right side element to the left side .
[F3](EQUA)[F4](rewrit)
rewrite( equation [ ) ]
rewrite( inequality [ ) ]
rewrite( X+3 = 5X-X2 ) X2-4X+3 = 0
rewrite( X2+X-2 > 3X2+5X-7 ) -2X2-4X+5 > 0
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