Verify Mode - Casio ALGEBRA FX 2.0 PLUS Function Manual

k Specifying the Solve Mode
You can select one of the following three solve modes for the displayed expression.
• {VRFY} ... {Verify Mode}
In this mode, you input a solution for verification of whether or not it is correct. It provides
a good way to check solutions you arrive at manually.
• {MANU} ... {Manual Mode}
In this mode, you manually input algebra commands, transform the expression, and
calculate a result.
• {AUTO} ... {Auto Mode}
In this mode, the solution is produced automatically, one step at a time.
k Verify Mode
Press 4(VRFY) to enter the Verify Mode.
The expression is shown in the top line of the display. Input the solution underneath it, and
then press6(JUDG) to determine whether the solution is correct.
The verification result screen shows the left side and right side verification result (except for
a linear equation).
• However, in the case where a linear equation or quadratic equation has two solutions, the
left side and right side are obtained for the value where the pointer is located.
• In the case of simultaneous equations where the left side and right side of the second
equation are dissimilar even though the left side and right side of the first equation match,
the left side and right side of the second equation only are obtained. In other cases, the left
side and right side of the first equation are obtained.
The type of solution input screen that appears is selected according to the expression type.
To input a different type, press 1(TYPE) and then select the solution type you want to want
to use. Available solution types depend on the mode.
• {X = a} ... X has one solution (X = a) (linear equation default)
• {X = a, b} ... X has two solutions (X = a, X = b) (quadratic equation default)
• {X = a, Y=} ... X and Y have one solution each (X = a, Y = b) (simultaneous equation
• {X > a} ... X { > < > < } a (linear inequality default)
• {X < a, b <} ... X < a, b < X or X < a, b < X
• {a < X < b} ... a < X< b, a < X < b or X = a
• {Identi} (Identity) ... identity of left side and right side
• {Many} (Many Solutions) ... many solutions
• {No sol} (No Solution) ... no solution
Tutorial Mode
default)
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