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Let's briefly review some of the commonly used methods in the math class you may not use math class

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as frequently as a string class but still it is something that you might use from time to time.

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So it would be worthwhile to check out some of its methods.

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We also know that math class has only static methods and it is also known intangible as it has a private

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constructor.

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So let's go ahead and look at the math class.

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One of the common used matters is that know the method and as the name suggests it basically didn't

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set a random number between 0 and 1.

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Here one is exclusive.

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And so the method will never return a value of one and the value return is a double value.

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You can also see an example here.

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Here we want to generate a random integer between zero and five.

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So you would multiply Matt not random but w W5 and then caused the result to an end.

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For example if the method returns a random number zero point nine.

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Then on Monday playing with file the value would be 4.5.

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But when cast is applied the value 4.5 gets truncated before this recall for more typecasting discussion

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that when we cast a flawed r w an integer it will all this truncate the number.

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So in this case we wanted a random number between zero and five.

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And if you want a random number between 0 and then we would simply multiply Mad Dog random the WGAN

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.

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We will also use this method quite a bit in our project that we will implement after completing object

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oriented concepts.

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Next is the matter ABS which is an overloaded method that returns the absolute value of the argument

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.

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So if the argument is minus 240 as shown here then it would read in a positive to 40.

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Of course if the argument is already positive do then the return value would be same as the input argument

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.

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Next is that Rawn method as the name suggests.

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It basically advanced the input argument to the nearest long r and depending on the data type of the

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argument.

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So if argument is a double value then it gets thrown into the nearest long rally.

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For example here twenty four point eight is a double value and so it gets rounded to the nearest long

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value with just one defined.

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Hello what if argument is flawed then it gets thrown out the nearest interview.

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For example are twenty before want to file is a float value and it gets thrown into the nearest And

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with just one before.

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Basically double the 64 bits and so long as return as it is also 64 bits.

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Same happens with float.

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And both of which are represented in 32 bits.

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Next is the silly method it returns the smallest double that is greater than or equal to the argument

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.

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Another one should be equal to an integer.

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Here in this example.

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Input argument is 20.00 on and so the seen method would require the double value 21 so can do it.

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Here is the smallest double value that is greater than can be Point 1 undergoes equals an integer.

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Can you guess what it would get done if the argument is a double point B.

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It would be current itself as the definition is greater than or equal to the argument should be equal

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to an integer 2.

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OK next is the floor method which is opposite of sea floor it does the largest double.

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That is less than not equal to the argument.

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And it should also be equal to an integer.

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You can also see an example here.

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So both C and floor return a double value.

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Well-drawn method returns a long road and none of them and their names reflect what they are doing.

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If it is seen it means like a ceiling on say greater than or equal to will you believe it can.

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Well for float it means like bottom on a smaller or equal two value will be returned.

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Put it on.

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It will simply be rounded to the nearest integer value depending on the argument that is it can be either

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a value that is greater than the argument R.W. smaller than the argument next the overloaded min and

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max metrics which stick to arguments as the names imply dissimulated and minimum or maximum of the two

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numbers.

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Next a square root and square root of the argument as a double value.

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But if argument is something called nine or a negative number then a 9 would be returned.

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Nan stands for Not the number.

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And it implies something that is undefined or in other words meaningless.

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It is produced if a floating point operation has some input parameters which cause the operation to

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produce an undefined result in the case of square root.

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It can be a negative argument which is basically meaningless because it's a matter to return a man.

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Similarly if you do get a double value zero with another double value zero then we get a Nanna's output

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.

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Similarly there is a method for finding cube root and also there are few other commonly used matters

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related to logarithmic and parametric functions.

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So I think we covered some very common to use my dad's knowledge just very quickly.

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Yes some of them are there to be reviewed in my Eclipse already.

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OK let's just look is there and that would be generated.

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OK so let's have this statement and let's have a double zero which is divided by double zero discharge

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under demand.

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We discussed this earlier.

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So as you can see when I run it it prints none.

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So this expression is generating it.

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Man next Let's try my dark square root and for this effect give a negative number.

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It would also generate and 9.

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So an ironic X is not OK so it needs to be a positive value.

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Next let's test a random method.

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So let's gaster to and let's just try the same method.

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Same example that we have seen

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math dark ride numbers generates a number between 0 and 1.

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Since we want number between 0 and 5 so be multiplied with 5 and when we run it.

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So it's printing for let me run it once again.

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This time it is under-10 0.

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What I need one more time.

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It's generating 3.

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So that's the random number generator.

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Next let's try wrong.

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So let's say math wrong let's say twenty one point four 9 9 9.

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And since this is our diabolical Jondrette the nearest long and then nearest long will be 21.

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OK but if we make it one day 1.5 it should pretend to Google only to 22 and you can see it here.

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So that's what we have.

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Next let's try seal.

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So Matt Dotsie just know that all of these are static methods and so we are just accessing using the

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Glasman.

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So let's say twenty one point one.

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So this should generate a double 22 right.

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Since it's a sealed function.

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Now if we make it floor it will be 21.

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So you can see Prince 21 next.

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Let's just try the max function not Max and that is also a min.

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But let's just try.

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Mad Max defier.

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So this should bring to an defier.

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Here you go.

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So that's about it.

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So just go ahead and explode the Djala API.

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I look at the math class.

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It has many other methods so just go ahead and familiarize yourself with that and are some of them.

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And that's about it.

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And thank you