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Hello everyone.



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So I hope for Glass is no clear to you all.



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If it is not clear then please do it again.



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Try to create friction glass on your own.



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In this session I will discuss a problem that you guys will implement.



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I am just giving you a brief introduction on how to implement it.



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In the last session we implemented refreshing glass.



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So now you guys have to implement complex no glass so enmeshed complex.



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So in metals.



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There are complex numbers so a complex number is like we have a real part and we have imaginary part



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real part and imaginary part.



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This is called order.



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Some people represented with g or so but prefer this i okay So example is three plus four I order.



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Okay so this is a complex number so complex number is two parts real part and imaginary part.



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So how we will implement this glass how we will implement complex no glass.



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So first of all we will have two private properties two private data members real and imaginary so these



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will be two private data members to private properties.



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Okay so they both will be private.



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Now let's see



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so let's say this line line.



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MARTIN So what is this.



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It is a constructor so this is a paramedic's constructor and this better amortized constructor is taking



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two values first.



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The real part and second is the imaginary part.



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Okay so for example how we will create object so a complex number name of the class when and legendary



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all parties 3 and the imaginary part is 5.



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So what will happen in the paramedics constructor a real part will be set to three real part will become



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three and the imaginary part will become five okay.



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Dale Bartlett welcome to reimagining but will become five.



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So I am using parameters constructor here.



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So wipe Adam or those constructor because if a user wants to create object of my class he has to give



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the value of real part and they match any part.



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So my real or imagined part will never contain garbage value.



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Okay they will never contain garbage value.



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After that I will take a choice as input from the user.



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So if the choice is one I am calling a function.



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C1 dart plus C2.



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So plus is a function plus a function that you guys will implement.



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So what best function will do.



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It will add to complex number.



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So C2 is a barometer to the argument of type complex number.



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Okay so what display function will do.



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It will add to complex numbers and put that is our even.



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So add two complex numbers see when plus you two and put that in there didn't see one.



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Just like we did in the faction class we will add two complex number and four that is in complex numbers



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even.



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Okay so you two will remain unchanged.



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CO2 remains unchanged.



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OK so what is that.



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But rather than type of the plus function we don't have will be void.



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We are not attending anything.



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Okay so how do I do complex number.



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So suppose 7 is 3 plus 4 iota and c 2 is 5 plus one iota.



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So what will be C when plus you to see plus you two will be real part plus real part.



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So eight plus five.



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IOTA okay.



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So this will be our new value of seven.



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So this will become C1 and C2 will remain unchanged.



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CO2 remains unchanged.



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So this is how we are a complex number.



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So you have to compare this plus function you have to write this plus function.



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And then after doing plus after doing plus operation what we are doing we are printing we are printing.



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So how we will print we will print real part first then plus then iota and then imaginary part.



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Okay.



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So this is how we print a complex number.



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So what if the choice is.



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If the choice is to I have a function called C1 multiply.



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So he went out multiply C2.



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So this multiply is a function that you guys have to implement.



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So this multiply function doesn't have any return type of return type is void and it will take object



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of type complex number.



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Okay.



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So this.



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So this multiply function what will do.



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It will take to complex number 7 as you do multiply them and put there is urgency when.



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Okay so multiply too complex the embassy went into you 2 and put that urgency when you two will remain



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unchanged.



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Okay.



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So do you guys know how to multiply two complex number.



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So I am just giving you of beef idea so let's say C when is three plus 4 I order and C two is five plus



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one iota.



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So C when multiplies you to so first of all real part multiply really part.



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So three into five with a negative sign.



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Why negative sign.



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Because I would test queries minus one and then imagine about my GPA imaginary part so forward into



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one.



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So this will be your real part.



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Now it's time for the imaginary part.



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So I order so imaginary part will be three to one plus four and do five.



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Okay so what is the formula.



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Formula is very simple.



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A real part of C1 real part C1 multiply real part C two negative sine imaginary Part C even multiply



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imaginary part C two.



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So this will be your real and the imaginary part will be a real part of C1 multiply imaginary part of



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C2 plus sine real part of C to multiply imaginary part of C even.



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Okay so this is the formula for multiplying two complex number.



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I hope you guys already know this formula but in case you would run.



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No I just gave you the formula.



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So what we are doing here is after the multiplication we are printing seven seven dot print.



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So print is also a function print is also a function so print is not taking any argument and the return



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type will be void.



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Okay so best of luck guys.



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I hope you will be able to implement it very easily.



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Okay.



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Thank you.