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I guys and welcome to this new section in this section we are going to learn about expressions.



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I will demonstrate you how to use expressions.



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The concept of expressions and how to do certain graphics with expressions that are pretty interesting



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expression are used to reduce the work and to do certain animations that don't require keyframes of



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course expressions will reduce the number of keyframes in a terrible way up to zero if you want.



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So we will go through some difficult expressions and some simple expressions.



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What is important here is not to learn all the expressions it's to learn the concept of expression the



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concept of referencing and how to pick values how do you use the whip in the right way.



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That's what we're doing in this section.



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The thing that we will not be doing is trying to write a javascript script more programs or scripts.



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We are not going to learn how to use these script because script is a language javascript and is not



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given to everybody to learn that language.



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And when you are raising after effects you don't want to use javascript and to learn scripts write scripts.



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That's not necessary.



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You can always go to very many sites that will give you a ready made scripts that you can use.



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But it's important that you learn how to change the scripts sometimes and how to understand how after



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effects uses expressions.



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So let's dive in in this section and I hope you learn a lot if you have any questions you know very



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well.



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You can post your questions in the queue any section of this course and it will be very happy to answer



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to you.



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Let's move on to the first lecture.