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1.3 Matlab as a calculator

Try typing the following in the command window:
2+2
3*3
5/2
2^8
100-43
log(2)
sin(pi/2)
acos(-1)
Not very impressive perhaps--a cheap calculator can do the same. But this is just the start. MATLAB is a powerful programming language as well. Before we move on to that stuff though, take a look at Table 1.1. It is a (very) partial list of some of the mathematical operators and functions MATLAB knows. If you want to see all of the ``elementary functions'' included in MATLAB, type help elfun. To see all of the operators, type help ops. Special functions can be listed the same way, try help specfun. Incidentally, all of the help subjects in MATLAB can be listed by typing help without any arguments.

Table 1.1: A partial list of MATLAB's mathematical operators and functions.
Operators Functions
+ Addition sin cos
$-$ Subtraction tan sinh
$*$ Multiplication cosh coth
^ Exponentiation exp log
/ ``Left'' division sqrt abs
$\backslash$ ``Right'' division floor ceil


next up previous contents
Next: 1.4 Variables Up: 1. Getting started with Previous: 1.2 Matlab interface   Contents
Gus Hart 2005-01-28