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HP Prime Graphing Wireless Calculator User Manual

Page 191

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Functions and commands

187

Example:

gramschmidt

returns

halftan2hypexp

Returns an expression with sine, cosine, and tangent rewritten

in terms of half-tangent, and sinh, cosh, and tanh rewritten in

terms of the natural exponential.

halftan_hyp2exp(ExprTrig)

Example:

halftan_hyp2exp(sin(x)+sinh(x))

returns

halt

Used in programming to go into step-by-step debugging

mode.

hamdist

Returns the Hamming distance between two integers.

hamdist(Integer1, Integer2)

Example:

hamdist(0x12,0x38)

gives

3

has

Returns 1 if a variable is in an expression, and returns 0

otherwise.

has(Expr,Var)

Example:

has(x+y,x)

gives

1

head

Returns the first element of a given vector, sequence or string.

head(Vector) or head(String) or
head(Obj1, Obj2,…)

Example:

head(1,2,3)

gives

1

1 1 x

+

p q

,

(

)

p q

x

d

1

1

,

1

2

------- 1 x 1

+

6

3

-------

----------------------

2

x

2

---

 

 

tan

x

2

---

 

 

2

tan

1

+

--------------------------------

exp x

( )

1

exp x

( )

-----------------

2

------------------------------------------

+