HP NW280AAABA Bedienungsanleitung Seite 383

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Seitenansicht 382
Functions and commands 377
Quadratic Explorer functions
SOLVE Solve quadratic. Given the coefficients of a quadratic
equation ax
2
+bx+c=0, returns the real solutions.
SOLVE(a, b, c)
Example:
SOLVE(1,0,-4) returns {-2, 2}
DELTA Discriminant. Given the coefficients of a quadratic equation
ax
2
+bx+c=0, returns the value of the discriminant in the
Quadratic Formula.
DELTA(a, b, c)
Example:
DELTA(1,0,-4) returns 16
Common app functions
In addition to the app functions specific to each app, there are
three functions common to the following apps. These use as
an argument an integer from 0 to 9, which corresponds to one
of the Symbolic view variables for that app.
Function (F0F9)
Solve (E0–E9)
Statistics 1Var (H1–H5)
Statistics 2Var (S1–S5)
Parametric (X0/Y0–X9/Y9)
Polar (R0–R9)
Sequence (U0–U9)
Advanced Graphing (V0–V9)
CHECK Check. Checks—that is, selects—the Symbolic view variable
corresponding to Digit. Used primarily in programming to
activate Symbolic view definitions in apps.
CHECK(Digit)
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