HP 48gII Graphing Calculator Manual do Utilizador descarregar pdf (Página 138)

100

101

Page 3-13

` Calculate function

The result is shown next:

In RPN mode, recall that argument y is located in the second level of the stack,

while argument x is located in the first level of the stack. This means, you

should enter x first, and then, y, just as in ALG mode. Thus, the calculation of

%T(15,45), in RPN mode, and with system flag 117 set to CHOOSE boxes,

we proceed as follows:

15` Enter first argument

45` Enter second argument

„´ Select MTH menu

5 @@OK@@ Select the 5. REAL.. menu

3 @@OK@@ Select the 5. %T function

Note: The exercises in this section illustrate the general use of calculator

functions having 2 arguments. The operation of functions having 3 or more

arguments can be generalized from these examples.

As an exercise for percentage-related functions, verify the following values:

%(5,20) = 1, %CH(22,25) = 13.6363.., %T(500,20) = 4

Minimum and maximum

Use these functions to determine the minimum or maximum value of two

arguments.

MIN(x,y) : minimum value of x and y

MAX(x,y) : maximum value of x and y

As an exercise, verify that MIN(-2,2) = -2, MAX(-2,2) = 2

Modulo

MOD: y mod x = residual of y/x, i.e., if x and y are integer numbers, y/x =

d + r/x, where d = quotient, r = residual. In this case, r = y mod x.

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