MATLAB For Dummies
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Appendix A
MATLAB Functions
This appendix provides you with an overview of the MATLAB functions. Each function helps you perform a specific task within MATLAB. The tables contain the function name and a short description of the task that the function performs. If you need more information than this appendix gives you, you can obtain additional information by typing help <function_name> in the MATLAB command window and pressing Enter. Of course, you also have the information found in this book, and you can search in Help. See Chapter for some useful information on using the Help resources that MATLAB provides.
Table A-1 Arithmetic Functions
Function | Description |
uplus | Unary plus comparable to + acting on one object |
plus | Plus comparable to + adding two objects |
uminus | Unary minus comparable to acting on one object |
minus | Minus comparable to subtracting two objects |
mtimes | Matrix multiplication comparable to * |
times | Array multiply comparable to .* |
rdivide | Right-array division comparable to ./ |
mrdivide | Solves systems of linear equations xA = B for x comparable to / |
ldivide | Left-array division comparable to .\ |
mldivide | Solves systems of linear equations Ax = B for x comparable to \ |
power | Array power comparable to .^ |
mpower | Matrix power comparable to ^ |
diff | Differences and approximate derivatives |
prod | Product of array elements |
sum | Sum of array elements |
ceil | Rounds toward positive infinity |
fix | Rounds toward zero |
floor | Rounds toward negative infinity |
idivide | Integer division with rounding option |
mod | Modulus after division |
rem | Remainder after division |
round | Rounds to nearest integer |
Table A-2 Trigonometric Functions
Function | Description |
sin | Sine of argument in radians |
sind | Sine of argument in degrees |
asin | Inverse sine; result in radians |
asind | Inverse sine; result in degrees |
sinh | Hyperbolic sine of argument in radians |
asinh | Inverse hyperbolic sine |
cos | Cosine of argument in radians |
cosd | Cosine of argument in degrees |
acos | Inverse cosine; result in radians |
acosd | Inverse cosine; result in degrees |
cosh | Hyperbolic cosine |
acosh | Inverse hyperbolic cosine |
tan | Tangent of argument in radians |
tand | Tangent of argument in degrees |
atan | Inverse tangent; result in radians |
atand | Inverse tangent; result in degrees |
atan2 | Four-quadrant inverse tangent |
atan2d | Four-quadrant inverse tangent; result in degrees |
tanh | Hyperbolic tangent |
atanh | Inverse hyperbolic tangent |
csc | Cosecant of argument in radians |
cscd | Cosecant of argument in degrees |
acsc | |
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