WEBVTT 00:00.200 --> 00:04.790 So guys, we are going to continue the discussion with respect to our Python series and this video. 00:04.790 --> 00:07.010 We are going to deep dive into the operators. 00:07.040 --> 00:12.410 Uh, and we'll see that how with the help of Python we will be able to perform different different operations. 00:12.410 --> 00:14.570 Now here is the entire video outline. 00:14.570 --> 00:17.330 So first of all we will go ahead and see introduction to operators. 00:17.330 --> 00:23.300 Then we'll see multiple arithmetic operators like addition subtraction, multiple multiplication, division 00:23.300 --> 00:25.520 flow division modulus and exponential. 00:25.880 --> 00:31.190 Along with this we will see comparison operators like equal to not equal to, greater than, less than 00:31.400 --> 00:33.740 uh greater than or, equal to, less than or equal to. 00:33.770 --> 00:35.570 And we'll perform various operations. 00:35.600 --> 00:38.930 Along with this we'll also be seeing logical operators like and or not. 00:38.930 --> 00:43.340 And then we will be like all these things will be shown along with the practical examples. 00:43.370 --> 00:43.940 Right. 00:44.000 --> 00:45.410 So let me just go ahead. 00:45.410 --> 00:49.610 First of all, if you don't know about operators, guys, any kind of math, arithmetic operation or 00:49.610 --> 00:53.480 logical operation can be probably performed with this kind of operators. 00:53.510 --> 00:53.750 Okay. 00:53.780 --> 01:00.230 And uh, obviously when we write any Python code, we definitely require a lot of, uh, operations, 01:00.260 --> 01:02.070 probably to develop our projects and. 01:02.070 --> 01:05.760 All right, so quickly, let me just go ahead and create my code cell. 01:05.760 --> 01:08.700 And here, uh, I will show you one shortcut. 01:08.700 --> 01:12.000 You just press escape and press A automatically. 01:12.000 --> 01:13.350 Cells will get appended. 01:13.380 --> 01:14.010 Right. 01:14.010 --> 01:18.390 So first of all, uh, we are going to go ahead with arithmetic operations. 01:18.390 --> 01:19.020 Right. 01:19.020 --> 01:24.810 And uh, here with respect to the arithmetic operations, uh, let me just go ahead and create some 01:24.810 --> 01:26.550 variables like a is equal to ten. 01:26.910 --> 01:28.320 Uh, oops. 01:28.320 --> 01:32.070 So I will go ahead and write okay. 01:32.100 --> 01:33.060 This is getting added. 01:33.060 --> 01:34.500 We'll discuss about all these things. 01:34.500 --> 01:35.220 No worries. 01:35.220 --> 01:37.590 So A is equal to ten okay. 01:37.590 --> 01:41.250 And let's say I'm going to write B is equal to 15. 01:41.280 --> 01:45.300 If I want to perform any kind of operations over here. 01:45.330 --> 01:45.600 Right. 01:45.600 --> 01:48.390 Let's say I want to perform a basic arithmetic operation. 01:48.390 --> 01:49.290 I will go ahead and write. 01:49.320 --> 01:51.210 Result is equal to a plus B. 01:51.210 --> 01:54.180 So this is the addition operation that we specifically do. 01:54.180 --> 01:58.680 And here I can go ahead and print my result right a simple addition operation. 01:59.100 --> 02:01.680 So here my answer is 15 right. 02:01.710 --> 02:10.420 Similarly what I can actually do is that again, so this will basically be my ad ad result okay. 02:10.450 --> 02:15.220 Similarly, we can go ahead and create our subtraction result which will be nothing but a minus b. 02:16.420 --> 02:23.110 Then along with this we can go ahead and do our multiplication result right, which will be nothing 02:23.110 --> 02:24.640 but A multiplied by B. 02:25.300 --> 02:28.690 This is what we specifically get with respect to the multiplication operation. 02:29.380 --> 02:32.320 Along with multiple operation, we also have a division operation. 02:32.320 --> 02:33.580 So let me just go ahead and write. 02:33.580 --> 02:37.870 My division underscore result is equal to a divided by B. 02:38.020 --> 02:38.620 Okay. 02:39.160 --> 02:42.490 Uh and then we will also be having flow division. 02:42.490 --> 02:45.400 We'll discuss what is the difference between flow division also. 02:45.400 --> 02:49.750 So here you can see flow underscore div underscore results okay. 02:49.750 --> 02:55.180 And here you can see I have to just use a double slash like it's not divided. 02:55.180 --> 02:56.680 It's double divided by b okay. 02:56.710 --> 03:00.820 So we'll discuss about this why exactly we use this flow division okay. 03:00.820 --> 03:04.230 So this is my uh addition operation. 03:04.530 --> 03:07.860 This is my subtraction operation. 03:08.040 --> 03:10.320 A subtraction 03:12.090 --> 03:17.940 operation and the next one is my multiplication operation. 03:18.240 --> 03:21.630 And this is my division operation. 03:21.630 --> 03:23.250 And this is my flow division. 03:23.250 --> 03:25.140 We'll understand everything over here. 03:25.170 --> 03:26.010 Don't worry. 03:26.370 --> 03:26.880 Uh. 03:27.180 --> 03:28.110 Normal operation. 03:28.110 --> 03:29.130 I think you know it, right? 03:29.160 --> 03:30.330 It's basic maths. 03:30.360 --> 03:34.470 Then you also have, which is called as modulus operation. 03:34.500 --> 03:34.680 Okay. 03:34.710 --> 03:41.550 So here I'm going to basically go ahead and write modulus underscore result is equal to a modulus b. 03:41.700 --> 03:43.260 So we'll discuss about this. 03:43.260 --> 03:46.080 So this is exactly my modulus results. 03:46.320 --> 03:51.240 Or here I can write a modulus operation okay. 03:51.570 --> 03:57.000 And then finally you'll also be able to see that I will also use an exponential operation. 03:57.000 --> 04:03.660 And here I can go ahead and write exponential underscore result which will be nothing but a to the power 04:03.660 --> 04:08.150 to the power we basically say like we use this two star to the power of B. 04:08.180 --> 04:12.320 Okay, so this is basically my exponential operation. 04:12.710 --> 04:13.220 Okay. 04:14.030 --> 04:14.660 Perfect. 04:14.660 --> 04:16.910 Now let's go ahead and print this result. 04:16.910 --> 04:18.980 So here we have this. 04:19.010 --> 04:21.590 Then again I will go ahead and write print. 04:21.620 --> 04:24.620 Then again I will go ahead and write print. 04:24.650 --> 04:29.600 I'll copy this print multiple times because I need to display this results together. 04:29.960 --> 04:30.530 Okay. 04:30.530 --> 04:34.790 So now uh, let me just go ahead and write the subtract result. 04:35.060 --> 04:37.310 Uh, let me go ahead and. 04:37.340 --> 04:37.850 Oops. 04:37.850 --> 04:38.570 Just a second. 04:38.570 --> 04:39.680 Multiple results. 04:39.680 --> 04:41.990 So I will go ahead and paste it over here. 04:42.110 --> 04:43.250 And then we have our. 04:43.430 --> 04:44.330 Result. 04:44.450 --> 04:45.980 We'll paste it over here. 04:46.010 --> 04:48.230 Then we have our modulus result. 04:48.230 --> 04:49.490 We'll paste it over here. 04:49.520 --> 04:50.330 Then we have. 04:50.360 --> 04:51.560 Our exponential results. 04:51.560 --> 04:53.600 We'll paste it over here okay. 04:53.990 --> 04:56.990 One floor division result is pending. 04:56.990 --> 04:57.320 So let. 04:57.350 --> 04:59.090 Me just go ahead and write it over here. 04:59.090 --> 05:01.580 Print and I'll paste it over here. 05:01.580 --> 05:02.600 So here you can see. 05:02.630 --> 05:03.650 Addition is 15. 05:03.650 --> 05:04.910 Subtraction is five. 05:04.940 --> 05:06.530 Multiplication is 50. 05:06.560 --> 05:08.120 Division is 2.0. 05:08.150 --> 05:10.940 And float division result is nothing but two. 05:10.970 --> 05:11.300 Right? 05:11.330 --> 05:13.730 We will discuss about both of them by 2.0 and two. 05:13.760 --> 05:15.650 Then you have modulus operation. 05:15.650 --> 05:19.130 Modulus basically means that it will try to just give you the remainder. 05:19.160 --> 05:19.580 Right. 05:19.580 --> 05:24.020 So here you can see ten divided by five is uh like the remainder is zero. 05:24.020 --> 05:26.780 So that is the reason you will be able to see zero is over here. 05:26.780 --> 05:30.020 And when we do a to the power of B right. 05:30.050 --> 05:33.500 Ten to the power of five, we are actually going to get this value right. 05:33.530 --> 05:36.260 Now let's discuss more about this two okay. 05:36.290 --> 05:37.490 This two operation. 05:37.490 --> 05:42.740 Let's say that I want to uh, divide a number like ten divided by five. 05:42.740 --> 05:49.580 So I will be able to get two if I go ahead and write, let's say I will go ahead and write 21 divided 05:49.580 --> 05:50.060 by five. 05:50.060 --> 05:51.290 And obviously, you know the result. 05:51.290 --> 05:52.190 It is 4.2. 05:52.220 --> 05:52.730 Right. 05:52.730 --> 05:57.740 But if I use float division then what will happen is that I will get the answer as four. 05:57.740 --> 06:00.470 So whatever will be the float value, right. 06:00.470 --> 06:03.950 The lowest value, it will just remove the decimal and it will give you the output. 06:03.980 --> 06:04.490 Okay. 06:04.490 --> 06:06.320 So this is a basic example. 06:06.320 --> 06:09.480 Now you can perform various operations and we will see. 06:09.480 --> 06:11.520 I will try to create a calculator for you. 06:11.520 --> 06:16.290 And over here only I will show you that particular project also right as we go ahead. 06:16.350 --> 06:17.130 Perfect. 06:17.280 --> 06:23.340 Now the next step we are going to probably discuss about is comparison operators. 06:23.730 --> 06:24.030 Okay. 06:24.030 --> 06:29.970 So let me just go ahead and write it down and basically write it down as comparison operators. 06:29.970 --> 06:33.990 So guys now let's go ahead and see some of the comparison operators. 06:33.990 --> 06:39.060 Uh, now first of all uh we will go ahead with double equal to okay. 06:39.060 --> 06:41.640 So we will be using double equal to. 06:41.670 --> 06:45.270 Now let's say that I will go ahead and create a result. 06:45.270 --> 06:49.890 Or let me just go ahead and define a variable called as a is equal to ten okay. 06:49.920 --> 06:51.690 And b is equal to ten. 06:52.140 --> 06:55.590 Now if I want to probably compare this operators right. 06:55.620 --> 06:58.650 What I can actually do, I can go ahead and write my result. 06:58.650 --> 07:01.410 And let me just go ahead and simply use a tuple. 07:01.410 --> 07:08.230 I will talk about this brackets and just let me write it like a double equal to B or if I don't even 07:08.230 --> 07:11.770 want to write like this, just go ahead and write a double equal to be right. 07:11.770 --> 07:14.530 If I execute it, I will be able to get true over here. 07:14.530 --> 07:19.780 So this is nothing, but it is a more of a equal to comparison, where it will be comparing between 07:19.780 --> 07:22.450 two identifiers and what value it has. 07:22.450 --> 07:22.870 Right. 07:22.900 --> 07:27.280 The, the it basically compares the value that is present within this particular data type. 07:27.310 --> 07:27.880 Okay. 07:27.880 --> 07:30.340 Then this is equal to operator. 07:30.340 --> 07:31.030 So here I am. 07:31.030 --> 07:33.070 Let me go ahead and write equal to operator. 07:33.070 --> 07:34.330 And you can apply it. 07:34.330 --> 07:43.510 And on various different data types let's say I have str one, my string one I have like Krish okay. 07:43.510 --> 07:47.320 And str two I have Krish right. 07:47.350 --> 07:49.240 Same same string right. 07:49.240 --> 07:50.980 So capital, Krish and Krish. 07:51.010 --> 07:56.920 Now if I go ahead and write str one double equal to str two, then here you will be able to see I'm 07:56.920 --> 07:57.550 getting true. 07:57.580 --> 07:58.060 Right. 07:58.090 --> 08:01.420 Let's say if I use a small k okay. 08:01.450 --> 08:03.190 Then you can see that I'm getting a false. 08:03.190 --> 08:06.400 So this comparison is also with respect to case sensitive right. 08:06.400 --> 08:09.960 So whatever data is present with respect to this, it is just going to compare it. 08:09.990 --> 08:10.470 Okay. 08:10.470 --> 08:12.870 So this is some type of operations. 08:12.900 --> 08:17.880 The next comparison operation that we are going to discuss is nothing but not equal to. 08:18.210 --> 08:18.480 Okay. 08:18.510 --> 08:19.950 So not equal to. 08:19.980 --> 08:23.250 Which is denoted by this exclamation not equal to. 08:23.280 --> 08:28.080 Now if I go ahead and just write str one is not equal to str two. 08:28.110 --> 08:34.170 So obviously based on this comparison you can see that this is exactly false because both of the strings 08:34.170 --> 08:34.590 are true. 08:34.620 --> 08:34.980 Right. 08:34.980 --> 08:36.930 So that is the reason it is coming as false. 08:36.960 --> 08:42.990 Let's say if I go ahead and define again my string one and string two, let's say I go ahead and define 08:42.990 --> 08:47.160 it as string three or string three. 08:47.160 --> 08:49.680 And then this will basically be my string four. 08:49.680 --> 08:54.240 And now let me make this as a small character okay. 08:54.270 --> 08:59.610 And let me go ahead and write s three str three is not equal to str four. 08:59.640 --> 09:01.950 Now it should probably give me a true value. 09:01.980 --> 09:02.220 Why. 09:02.250 --> 09:04.920 Because both of them are not equal right. 09:04.920 --> 09:09.030 So this was another operation that is not equal to okay. 09:09.060 --> 09:12.970 Now coming to the next one, uh, which is basically called as greater than. 09:12.970 --> 09:15.520 So this will basically be greater than. 09:15.550 --> 09:20.860 So this is again a comparison operation, uh, which we can actually use, let's say, and this greater 09:20.860 --> 09:25.120 than operation, let's say I have a value like 45 A is equal to 45. 09:25.120 --> 09:27.370 Or let me just go ahead and run number one. 09:27.430 --> 09:28.420 Uh, 45. 09:28.450 --> 09:30.250 Number two is 55. 09:30.280 --> 09:34.690 Now, if I go ahead and write, number one is greater than, uh, number two. 09:34.720 --> 09:35.170 Right. 09:35.170 --> 09:38.650 So the answer may be false because number one is obviously small over here. 09:38.650 --> 09:41.890 So here you can probably see that I'm actually getting false. 09:41.920 --> 09:42.460 Right. 09:43.120 --> 09:46.090 So this is one example of greater than operation. 09:46.090 --> 09:50.620 And uh similarly if greater than is there then obviously less than should also be there. 09:50.620 --> 09:54.790 So less than operation which is denoted by. 09:54.820 --> 09:59.530 This greater than operation is basically denoted by this okay. 09:59.590 --> 10:02.020 Now in this case if I want to execute less than. 10:02.050 --> 10:06.040 So again if I go ahead and execute, num1 is less than num2. 10:06.700 --> 10:09.580 So here you'll be able to see that I'm able to get true right. 10:09.580 --> 10:11.060 You can also print this result. 10:11.060 --> 10:15.440 At the end of the day, I'm actually going to get a boolean value itself because this is a comparison 10:15.470 --> 10:16.100 operation. 10:16.100 --> 10:20.540 And with respect to all the comparison operation, we are either going to get true or false. 10:20.570 --> 10:22.880 Okay, now this is fine. 10:22.970 --> 10:24.830 Like less than is there greater than is there. 10:24.860 --> 10:28.100 Now obviously you also have something called as greater than or equal to right. 10:28.130 --> 10:34.160 So let me just go ahead and write greater than or equal to right. 10:34.190 --> 10:38.330 So here let me just go ahead and show you once more one more example. 10:38.330 --> 10:42.020 Let's say that, uh, um, I have a number one. 10:42.020 --> 10:47.480 Number one is equal to 45 and number two is equal to 45. 10:47.510 --> 10:48.020 Okay. 10:48.380 --> 10:58.040 Uh, now if I go ahead and put this condition, number one is greater than or equal to number two. 10:58.160 --> 11:01.700 So I'm basically going to get the answer right over here as true. 11:01.700 --> 11:04.310 Because obviously this is equal. 11:04.310 --> 11:06.680 At least one of the condition is basically getting true. 11:06.710 --> 11:07.070 Right. 11:07.070 --> 11:10.280 So if I go ahead and print it you'll be able to see this right. 11:10.650 --> 11:15.090 Now here you can actually see that yes, everything is working fine and I'm able to get through. 11:15.120 --> 11:20.190 Now similarly, there is one more comparison operation which is nothing but less than or equal to. 11:20.220 --> 11:24.060 Now, in this particular case, if I apply the condition less than or equal to two, again I'm going 11:24.090 --> 11:27.300 to get true because 45 is equal to 45. 11:27.330 --> 11:30.570 So one of the condition is getting matched less than or equal to. 11:30.600 --> 11:31.050 Right. 11:31.050 --> 11:36.480 If I go ahead and probably, uh, let's say in 40 number one, I go ahead and write 44. 11:36.510 --> 11:41.040 Then also it is going to be true because this condition is getting matched because number one is less 11:41.040 --> 11:41.940 than number two. 11:41.970 --> 11:42.300 Right. 11:42.330 --> 11:44.820 So over here, this is another one operation. 11:44.820 --> 11:45.330 Right. 11:45.330 --> 11:50.250 So just you got an idea about various comparison operation that we have actually done. 11:50.280 --> 11:51.840 Now let me do one more thing. 11:51.930 --> 11:57.450 Let me just go ahead and, uh, talk about logical operators. 11:57.480 --> 11:57.720 Okay. 11:57.750 --> 12:04.350 So here I'm going to basically create a field and let's say I'm going to write logical operators. 12:04.380 --> 12:04.830 Right. 12:04.860 --> 12:08.010 So one is that we have discussed about comparison operators. 12:08.010 --> 12:09.690 So let me make a cell over here. 12:09.690 --> 12:13.660 So that for your reference purpose also it becomes easy, right? 12:13.690 --> 12:18.250 So for cell comparison operators. 12:18.280 --> 12:18.820 Okay. 12:19.060 --> 12:19.780 Done. 12:19.810 --> 12:20.410 Perfect. 12:20.440 --> 12:21.700 So comparison operators. 12:21.700 --> 12:23.530 And here you have all the things right. 12:23.530 --> 12:25.930 And now we are going to discuss about logical operators. 12:25.960 --> 12:34.060 Now logical operators basically means there are 311 is and one is uh not okay. 12:34.510 --> 12:36.070 And one is or. 12:36.910 --> 12:37.270 Right. 12:37.270 --> 12:40.900 So most common operation in logical operator is something like this. 12:40.900 --> 12:43.150 Now let me talk about this right. 12:43.180 --> 12:49.810 In the case of and you know and if you know about digital logic gates, I hope in college at least some 12:49.810 --> 12:56.500 idea you have about it in case of and when both A and B right are true, then only you will be able 12:56.500 --> 12:59.710 to get the output as true, otherwise it will be completely false. 12:59.710 --> 13:00.820 What do I mean by that? 13:00.820 --> 13:02.560 Let's say I have two boolean variable. 13:02.560 --> 13:03.730 One is x. 13:03.760 --> 13:06.280 Let's say it is true right now. 13:06.280 --> 13:13.580 In this particular case, if my y is also true right now, if I go ahead and write okay, Let's say 13:13.580 --> 13:21.020 that I go ahead and create my result and let me go ahead and write it as X and C and operation. 13:21.020 --> 13:30.860 We have to use Y right now if I go ahead and print my result, if I go ahead and print my result, you'll 13:30.890 --> 13:32.540 be able to see that I'm able to get true. 13:32.570 --> 13:33.140 Right. 13:33.140 --> 13:34.730 Because both of them are true. 13:34.760 --> 13:35.270 Right. 13:35.270 --> 13:41.720 But in this particular case, if I just copy this and paste it over here and this case now let me say 13:41.720 --> 13:46.970 that if y is false, then if I go ahead and execute, it is going to come false, right? 13:47.000 --> 13:53.330 Even though this may be true and this may be false, then also I'm able to get false. 13:53.330 --> 13:56.180 So in the case of an operation, right. 13:56.210 --> 14:01.970 Always you need to make sure that whenever both the variable will be boolean true, then only your output 14:01.970 --> 14:04.190 will be true, right in the case of an operation. 14:04.220 --> 14:07.460 Now let's go ahead and understand about our operation. 14:07.460 --> 14:17.740 Now, in the case of our operation, uh, only in the case of only in the case when x and y are false, 14:18.550 --> 14:27.670 x and y are false, then only we are going to get the output as false or the remaining all the time. 14:28.450 --> 14:31.870 If I keep it as true or false or true true or. 14:31.900 --> 14:32.680 Okay, sorry. 14:32.680 --> 14:39.520 This is and right okay or now any time you will be able to see whenever I keep x, either one of them 14:39.520 --> 14:41.110 is true or both of them is true. 14:41.110 --> 14:43.030 I am always going to get the output as true. 14:43.240 --> 14:47.020 Otherwise, if both of them are false, I am always going to get the output as false. 14:47.020 --> 14:51.310 So this is the most important thing with respect to the Or operation, right? 14:51.340 --> 14:57.640 And finally you'll be able to see that I also have another operation which is called as not and not 14:57.670 --> 15:01.060 operation is nothing, but it is the reverse. 15:01.090 --> 15:03.520 It is a just a reverse of a boolean variable. 15:03.550 --> 15:03.910 Right? 15:03.940 --> 15:05.440 What do I mean by that? 15:05.470 --> 15:08.080 Let's say I have x is equal to true. 15:08.170 --> 15:08.860 Right. 15:08.860 --> 15:12.700 And if I go ahead and write not of x, then what I am able to get. 15:12.730 --> 15:14.830 See inverse of this x right. 15:14.860 --> 15:16.670 So here I'm able to get false. 15:16.790 --> 15:17.270 Right. 15:17.270 --> 15:21.530 So naught is nothing, but it is an inverse of any boolean variable. 15:21.560 --> 15:27.380 So if this boolean variable is false then if I go ahead and write not of x then I am actually able to 15:27.380 --> 15:29.390 see that I'll be getting true right. 15:29.480 --> 15:33.890 So here we have discussed various comparison logical operators. 15:33.920 --> 15:37.820 Again it will be important for various arithmetic operations as such. 15:37.850 --> 15:45.080 One A good code example arithmetic or a simple calculator will be designing and you can probably check 15:45.110 --> 15:45.950 out this code. 15:45.980 --> 15:51.080 Okay so here you can see I'm giving float enter first number second number. 15:51.080 --> 15:56.000 And you are performing addition subtraction multiplication division modulus exponentiation. 15:56.000 --> 15:57.230 And here you are displaying it. 15:57.230 --> 15:58.820 So let's go ahead and execute this. 15:58.850 --> 16:04.310 So if I go ahead and write uh 12 and execute it for execute it. 16:04.310 --> 16:06.290 So here is what is my output. 16:06.320 --> 16:06.860 Right. 16:07.190 --> 16:10.760 So I hope you were able to understand regarding operators. 16:10.760 --> 16:12.680 So this was it from my side. 16:12.710 --> 16:16.040 Uh yeah I will see you all in the next video. 16:16.040 --> 16:16.520 Thank you. 16:16.550 --> 16:16.970 Take care.