HP Prime Graphing Wireless Calculator - Manual (Page 216)

212 Functions and commands
Example:
0 XOR 1 returns 1
zip Applies a bivariate function to the elements of two lists or
vectors and returns the results in a vector. Without the default
value the length of the vector is the minimum of the lengths of
the two lists; with the default value, the shorter list is padded
with the default value.
zip(‘function’List1, List2, Default) or
zip(‘function’, Vector1, Vector2, Default)
Example:
zip('+',[a,b,c,d], [1,2,3,4])
returns
[a+1 b+2
c+3 d+4]
| Inserts a template for substituting a value for a variable in an
expression.
Expr|Var1=Val1, [Var2=Val2, …]
2 Returns the square of an expression.
(Expr) 2
π Inserts pi.
∂ Inserts a template for a partial derivative expression.
Σ Inserts a template for a summation expression.
− Inserts a minus sign.
√ Inserts a square root sign.
 Inserts a template for an antiderivative expression.
≠ Inequality test. Returns 1 if the left and right sides are not
equal and 0 if they are equal.
≤ Less than or equal inequality test. Returns 1 if the left side of
the inequality is less than the right side or if the two sides are
equal, and 0 otherwise.
≥ Greater than or equal inequality test. Returns 1 if the left side
of the inequality is greater than the right side or if the two
sides are equal, and 0 otherwise.
 Evaluates the expression then stores the result in variable var.
Note that

cannot be used with the graphics G0–G9. See the
command BLIT.