HP 40gs Manual de usuario descargar pdf (Pagina 196)

100

101

14-14 Computer Algebra System (CAS)

Example 2

Typing:

SUBST(QUOTE(CONJ(Z)),Z=1+i)

gives:

CONJ(1+i)

STORE Store an object in a variable

STORE stores an object in a variable.

STORE is found in the ALGB menu or the Equation Writer

menu bar.

Example

Type:

STORE(X

-4,ABC)

or type:

-4

then select it and call STORE, then type ABC, then press

ENTER to confirm the definition of the variable ABC.

To clear the variable, press VARS in the Equation Writer

(then choose PURGE on the menu bar), or select

UNASSIGN on the ALGB menu by typing, for example,

UNASSIGN(ABC)

| Substitute a value for a variable

| is an infix operator used to substitute a value for a

variable in an expression (similar to the function SUBST).

| has two parameters: an expression dependent on a

parameter, and an equality (parameter=substitute value).

| substitutes the specified value for the variable in the

expression.

Typing:

gives:

1–

X 2=

1–

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