HP Prime Graphing Wireless Calculator Instrukcja Użytkownika Strona 462

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SolveForYIntercept
Solve for y-intercept. Takes as input the coordinates of a point (x, y), and a slope m, and returns the y-
intercept of the line with the given slope that contains the given point.
SolveForYIntercept(x, y, m)
Example:
SolveForYIntercept(2,3,-1) returns 5
Quadratic Explorer functions
SOLVE
Solve quadratic. Given the coeicients 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 coeicients 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 specic 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 (F0–F9)
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 denitions in apps.
CHECK(Digit)
414 Chapter 22 Functions and commands
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