User manual - Chapter 7 Computer Algebra System and Tutorial Modes

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7-1-7
Using the CAS (Computer Algebra System) Mode
Algebra Command Reference
The following are the abbreviations used in this section.
• Exp ... Expression (value, formula, variable, etc.)
• Eq ... Equation
• Ineq ... Inequality
Anything enclosed within square brackets can be omitted.
u expand
Function: Expands an expression.
Syntax: expand ( {Exp/Eq/Ineq} [ ) ]
Example To expand (X+2)
2
1(TRNS)b(expand)(v+c)xw X
2
+ 4X + 4
u rFactor (rFctor)
Function: Factors an expression up to its root.
Syntax: rFactor ( {Exp/Eq/Ineq} [ ) ]
Example To factor the X
2
– 3
1(TRNS)c(rFctor)vx-dw (X – 3) (X + 3)
u factor
Function: Factors an expression.
Syntax: factor ( {Exp/Eq/Ineq} [ ) ]
Example To factor X
2
– 4X + 4
1(TRNS)d(factor)vx-ev+ew (X – 2)
2