MATLAB Functions

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MATLAB Functions
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MATLAB Functions

• MATLAB functions represent more complicated tasks
  beyond arithmetic and logical operators
• All functions can be written via the simple
  operations we already learnt
• Using functions is more efficient

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Finding Functions

• Help-gtMATLAB Help-gtFunctions
• You can search by category or by name
• Functions takes in arguments and returns outputs
• out1, out2, outnfunc(arg1, arg2, argm)
• If function is applied to an array, the function
  is applied element by element to all values in
  the array

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Fun with Functions

• Find a function that requires two arguments
• What is the difference between sum() and cumsum()
  ?
• What is the function to find the square root ?
• Can it be implemented using nthroot ?
• Can it be implemented using power ?
• What is the difference between floor(), round(),
  ceil() and fix()
• What is the difference between plot and plot3 ?
• Name two functions that provide the date

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Summary

• What we learned cumsum, nthroot, power, floor,
  ceil, round,fix,plot,plot3
• Section 4.1

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