Hp Prime Graphing Calculator Manuel d'utilisateur télécharger pdf (Page 328)

100

101

324 Functions and commands

one expression and more than one variable as arguments,

returns the derivative of the expression with respect to the

variables in the second argument. These arguments can be

followed by $k (k is an integer) to indicate the number of times

the expression should be derived with respect to the variable.

For example, diff(exp(x*y),x$3,y$2,z) is the same as

diff(exp(x*y),x,x,x,y,y,z).

diff(Expr,[var])

diff(Expr,var1$k1,var2$k2,...)

Example:

diff(x^3-x) gives 3*x^2-1

Integrate Returns the indefinite integral of an expression. With one

expression as argument, returns the indefinite integral with

respect to x. With the optional second, third and fourth

arguments you can specify the variable of integration and the

bounds of the integrate.

int(Expr,[Var(x)],[Real(a)],[Real(b)])

Example:

int(1/x) gives ln(abs(x))

Limit Returns the limit of an expression when the variable

approaches a limit point a or +/– infinity. With the optional

fourth argument you can specify whether it is the limit from

below, above or bidirectional (d=–1 for limit from below and

d=+1 for limit from above, d=0 for bidirectional limit). If the

fourth argument is not provided, the limit returned is

bidirectional.

limit(Expr,Var,Val,[Dir(d)])

Example:

limit((n*tan(x)-tan(n*x))/(sin(n*x)-

n*sin(x)),x,0)

gives 2

1 2 ... 323 324 325 326 327 328 329 330 331 332 333 ... 607 608

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Hp Prime Graphing Calculator Manuel d'utilisateur Page 328

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