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hello everyone my name is George E and
the I'm one of the A's

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this course and in this video I want to
show you how to install gcc

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and importing particular Haskell
platform

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so to install first we have to find the
Haskell platform

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let us Google that and

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its me the first it and on this website
we're

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offered the choice of system that we
want to install on I'm using a Mac right

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now

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so I'll click on a Mac and

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the download link is up here has
platform 2014

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I'm downloading it now effect they have

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actually already downloaded this file so
that's just go ahead in

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click on it down and starts by double
clicking on it

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and then we are presented with the usual
menu

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click on Continue takes

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more than a good space which arm which
we are more than happy to

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use for Haskell and then we click
Install

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mean

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password authorize haskell to install

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and wait for it to finish

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and there it is no sorry there existed a

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the documentation page for the Haskell
platform where you can read up on

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all the ins and outs and things you can
do it

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so let's start with the some simple
examples

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I have to prompt open here

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on one I will open up my editor

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which is of course yeah I I have a file
called

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this dot HS recall that 8 HS is the
extension for Haskell files

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and in this file I have be fine

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two functions as mentioned in the
lectures double

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and quadruple so now I would like to

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see them in action so it typed UCI test
that HS

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and we see you love

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text being printed out but the most
important thing is right here

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okay modules those main so now we can

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star testing the functions made simply
typing in the name

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double it's a then which makes it twenty

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and also know that you can use tab
completion

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for quadruple 30 and a good

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120 so

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let's go back to the at their we have on
the left

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and simply add to new functions as we've
also seen the lecture

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in this case pictorial an average a.m.

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we worst JC I still running in our case

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and all we need to do load the new
functions is type

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colon reload and Jaci tells us

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that everything went okay so now we can
go ahead then

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the these functions at sea

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Victoria with then Corey

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you something's not going right

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me my bad have been saved

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the file yet so do need to save it
before it can be reloaded

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I reload once again modules loaded

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know it right pictorial then and I get
the right answer

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a try at average

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love this %uh 12

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3 4&5 and I get the number three

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so this is a very simple introduction as

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to how to install Haskell platform how
to use it how to load files in

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and out to start editing thank you