• If Decimal Mark in Modes is set to Comma, use periods to separate arguments. For example, CONCAT(L1.L2).

 

Common operators like +, –, ×, and / can take lists as

 

arguments. If there are two arguments and both are lists,

 

then the lists must have the same length, since the

 

calculation pairs the elements. If there are two arguments

 

and one is a real number, then the calculation pairs the

 

number with each element of the list.

 

Example

 

5*{1,2,3} returns {5,10,15}.

 

Besides the common operators that can take numbers,

 

matrices, or lists as arguments, there are commands that

 

can only operate on lists.

CONCAT

Concatenates two lists into a new list.

 

CONCAT(list1,list2)

 

Example

 

CONCAT({1,2,3},{4}) returns {1,2,3,4}.

∆LIST

Creates a new list composed of the first differences, that

 

is, the differences between the sequential elements in

 

list1. The new list has one fewer elements than list1. The

 

first differences for {x1 x2 ... xn} are {x2–x1 ...xn–xn–1}.

 

∆LIST(list1)

 

Example

 

In HOME, store {3,5,8,12,17,23} in L5 and find the first

 

differences for the list.

 

{3,5,8,12,17,23

 

 

 

 

 

 

 

 

}

 

 

 

 

L 5

 

 

 

 

L

 

Select ∆LIST

 

L5

Lists

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