Chapter 2: TI-83 Plus Specific Information 107
TI-83 Plus Developer Guide Third Release May 28, 2002
Other Math Functions
This section covers math functions with data types other than RealObj and CplxObj. It
also covers accessing math functions not listed in the above sections.
Many of the functions in the previous two sections can also be used with arguments
other than RealObj and CplxObj. For example
Sin(L1) Sine of list L1
4 * [A] 4 times matrix [A]
(1+2i) + L3 complex number (1,2) + list L3
The problem is the entry points that execute the above functions only use RealObj and
CplxObj arguments as inputs/outputs. There are two solutions to this problem:
• An application could use these entry points to produce results for arguments that are
lists or matrices by doing the element-by-element operations on the input. This
approach is not recommended.
• Execute these functions with mixed arguments using the system’s executor context.
The systems executor is used during parsing (see the next section for details) to
generate results. The executor is partitioned by the number of arguments that a
function takes as inputs. The routines used include:
UnOPExec Executes functions with one argument.
BinOPExec Executes functions with two arguments.
ThreeExec Executes functions with three arguments.
FourExec Executes functions with four arguments.
FiveExec Executes functions with five arguments.
Input to each of the above routines is a function to be executed along with the
argument(s) to be input to the function.
See the System Routine Documentation for a complete list of what functions can be
executed through the executor, and also for more details on the inputs/outputs
requirements.
Results from these routines may be stored in Temporary Variables. See to the
Temporary Variables Returned from the Parser section for additional details.
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