This video demonstrates how to convert from an IEEE 754 standard 32-bit binary number back into regular binary or decimal.
Пікірлер: 107
@philipwesley77908 жыл бұрын
Thanks for explaining in just over 4 minutes what my comp science lecturer failed to do in several hours.
@CarlsonsRaiders8 жыл бұрын
You explain to me in 4 minutes what my professor failed in an hour. Thank you!
@binexec8 жыл бұрын
Good explanation, but you really should've chosen a better example that has values behind the decimal rather than an integer 9.
@timburkhadt8 жыл бұрын
+BiN4RY Good example but bad example? xD
@korayozyurt59858 жыл бұрын
+Tim Burkhardt imagine a bad example instead of BiN4RY :D
@binexec8 жыл бұрын
+Tim Burkhardt I meant to say "good explanation", my bad.
@holy-crusader61399 ай бұрын
@@timburkhadt you mean good explanation?
@holy-crusader61399 ай бұрын
@@binexec ohh okay now it makes sense
@kittye82375 ай бұрын
I don't even know English, but I managed to understand it easily. Congratulations, your way of teaching is fantastic!
@miguellolgayol53804 жыл бұрын
Simple, easy, direct, everything I wish my teacher´s classes were
@shinythps9 жыл бұрын
Thank you! Very helpful. I had trouble understanding this, but your video cleared my mind from the confusion!
@carlosserrano51949 жыл бұрын
ShinyTHPS Helpful Video but I need to know, from where does it come the 1.0010..... ??? ThankYou
@samwashington66808 жыл бұрын
+Carlos Serrano well, when you convert back to decimal, you will always have to add that 1 because when you are converting FROM again FROM Decimal to IEEE 754 binary, you just remove 1.(you only care about fraction) and if you look at 2:20 , he got that number from pink highlight, that was considered a fraction because it is separated from other exponent and sign number... sorry for late response.
@NickTronic968 жыл бұрын
Thank you so much. Short and to the point.
@conscious5122 Жыл бұрын
i'm being deadass all of the comments saying you explained in four minutes what my professor tried to in multiple hours is 100% sure. thank you
@carlosserrano51949 жыл бұрын
Forget it, I understood now... ThankYou Very helpful
@milesemanuelpaavola79945 жыл бұрын
Great video thanks for posting. I have a mid-term today, and its helping with my studies. :-D
@SleepyMicky8 жыл бұрын
Thank you so much, keep it up with the good work :)
@khalidbutt87335 жыл бұрын
damn, Quick and straight. Great tutorial
@carla.output7 жыл бұрын
What could happen in the case of having floating points.. i mean... if the aswer is somthing like -9.35 or -35.25 ???? ?? sos!
@ferialebouariche99469 ай бұрын
thaaaaaaaaaaaank you so much I spent a lot time on KZfaq to understand, finally i understannnd
@thegreenstuff2158 жыл бұрын
how would you go about converting to double precision (64 bits)? would you proceed the same way and just fill in the extra slots in the exponent and mantissa with 0's?
@jermmylaso22678 жыл бұрын
Excellent explanation. Thank you!! Have an exam in 3 hours :)
@Tedoras7 ай бұрын
IK its been a 7 years but lool:) did u succeed?
@adampax4 жыл бұрын
really nice example. cheers :)
@xXTraceDerailmentXx7 жыл бұрын
When the number is negative and it is in two's complement, do i have to calculate the absolute value of this number first, or is it ok to put only the 1 at the beginning of ieee754?
@weeeewooooweeeeewoooo7 жыл бұрын
please give us an example using a number that isn't an integer!
@arthurytable8 жыл бұрын
i liked this example. i was confusing. thanks for help me.
@user-kv5xt4ph4y3 ай бұрын
Thank you so much. You saved me.
@GrassLover9 Жыл бұрын
great explanation
@donotwatchthisvideo25 жыл бұрын
Also do you have any video that deal with negative exponent in converting from decimal to IEEE745?
@aliceeverheart92376 жыл бұрын
What if there are 1s in the significand? We wouldn't just ignore them like we do if the rest were zeros right?
@byrek16848 жыл бұрын
thanks a lot, great video
@user-oj4pf5ob2p6 жыл бұрын
Thank you so munch my brother ♥
@mohdchand91957 жыл бұрын
thank you good explanation awesome
@DjikstraAlg_S.I2 жыл бұрын
Hello, please how did you come up with 127 and P as 3? would really appreciate the response. Thank you.
@TheFlyguy319 жыл бұрын
Thank you..very well explained :)
@carlosserrano51949 жыл бұрын
Michael Knox Helpful Video but I need to know, from where does it come the 1.0010..... ??? ThankYou
@hulekm3 жыл бұрын
@@carlosserrano5194 In case you spent last 5 years trying to find answer, here it is. 1, (before the comma) is always there . ,001 (after the comma) is from fraction (bit 0-22)
@creatividad_nula31788 жыл бұрын
What type of round did you use? I've read that IEEE 754 uses 4 types of round. Thanks :)
@mzmzmzms5 жыл бұрын
nice work
@KW-dg6fs7 жыл бұрын
So I am assuming the spaces are part of the notation? otherwise 100000 or 1000001 and many other things can be the exponent? edit: nvm, I just realize the exponent have to occupy 8 bits even if its 0000 0000
@mariusveierland8153 жыл бұрын
thank you very much
@lockercoin36937 жыл бұрын
good job!
@donotwatchthisvideo25 жыл бұрын
Thank you so much
@Gamuss123454 ай бұрын
Can someone explain to me why it's a 1 in 2:42? I thought it has to be 0 as it's a positive binary number.
@user-gm2kz5vl1w8 ай бұрын
Good explaination thanke your f❤
@mightyalekslive6 жыл бұрын
What if the exponent is 00000000 Would that mean that exponent = bias + p => 0 = 127 + p => p = -127 ??
@salikathiunuvanwijewardana91876 жыл бұрын
thank you sir
@paulolopes59395 жыл бұрын
i got a question the value of the exp. is always 8 no matter what????
@HopeeInk5 жыл бұрын
good bless you 😭😭😭😭❤
@vedantu22544 жыл бұрын
Thank you
@starseer737 жыл бұрын
what do you do if there are still values after the decimal after moving it??
@michaelbauers88006 жыл бұрын
You probably figured this out. But in case someone else was confused...consider what .1 means in base 10. It's in the 10^-1 position ( the 1/10th position). 1*(1/10)=1/10=.1 It works the same way in base 2. .1 in base 2 is 1*2^-1=1/2=.5. In base 2, the places to the right of the decimal place are 1/2, 1/4, 1/8, 1/16, ... and so on. .111 in base 2 is, in base 10, 1/2+1/4+1/8=(4+2+1)/8=7/8=.875. Just remember that for all bases, the places of the number are the powers of the base. In base 10, we have ... 10^3, 10^2, 10^1, 10^0, 10^-1, 10^-2, ... ( 1000, 100, 10, 1, 1/10, 1/100). In base 2, we have ...2^3, 2^2, 2^1, 2^0, 2^-1, 2^-2 ( 8, 4, 2, 1, .5, .25).
@Chip80006 жыл бұрын
fucking legend. thank you ;)
@ManalManal-eb8ri8 жыл бұрын
thank you
@lockercoin36937 жыл бұрын
thx man!
@adamdebesai8 жыл бұрын
Great explanation
@spillitnow5 жыл бұрын
What does bias mean in this context? How do you know the bias is 127?
@hughmungus15725 жыл бұрын
yeah I'm wondering the same. Poor explanation.
@igormeo87445 жыл бұрын
In 32 bit the bias is 127
@carlosserrano51949 жыл бұрын
Helpful Video but I need to know, from where does it come the 1.0010..... ??? ThankYou
@combatcraz22543 жыл бұрын
this one is known as a hidden 1 because we hide it when converting from decimal to binary
@serignembackecoulibaly98642 ай бұрын
thanks you
@confianceallah99017 жыл бұрын
Merci ......trés bien
@shawnkhoo19493 жыл бұрын
This video is so simple some steps just doesn't make sense without explanation. Like how did he get 127 for bias? And why the p = 3 isn't brought into the next equations? SMH
@SugandhiVerma3 жыл бұрын
how does 127 + power came?
@armanicanady72844 жыл бұрын
why is the sign positive ?
@MrLennon704 жыл бұрын
Where did you get 1.0010.... ?
@joshoduyoye1109 жыл бұрын
What if the p was a negative number? Like -1 ... How do you solve it then?
@xXGuitarFrom71Xx9 жыл бұрын
Josh Oduyoye I think if you get a negative p that means you must shift your point leftwards. Imagine you ave, like in the example, 1.001... (adding that 1, as the uploader said), you would just shift the point to the left, and the result will be 0.1001... That in terms of computers is a non-normalized number, because its integer part is 0...
@husnainfayaz8 жыл бұрын
+GuitarFrom71 covers! i have hexadecimal i,e 3F 99 99 9A and p is -16 now what?????
@MyNegativeCreep5 жыл бұрын
I thought 0 = positive and 1 is negative?
@redarsenal83408 жыл бұрын
how did you get bias = 127?
@duskshadow258 жыл бұрын
Whatever you get for the exponent part, you will always use that number to subtract 127 because in 8 bits the highest is 127 since it's from 0 to 127. In this case, if you have 1000|0010 = 128 + 2 = 130. Use 130 - 127 = 3. The idea of 127 is the same as adding a 1 in front of the fraction portion. It'll always be 1.###.... except in this case you will always subtract 127 because that's the highest it goes in 8 bits.
@debbiezepeda8 жыл бұрын
how does the exponent go from 128 to 130?
@theorangeiscool18 жыл бұрын
+Debbie Zepeda 1000000 = 2^7 = 128, but the exp is 1000010 which is 128 + 2 (because 10 in binary is equal to 2)
@guitarmenace19818 жыл бұрын
+theorangeiscool1 10000000 = 2^7 = 128
@duskshadow258 жыл бұрын
1000 0010 = 128 + 2 = 130. Remember that it's in base of 2. That's an 8 bit, so it goes from right to left 2^0, 2^1, 2^2, 2^3, 2^4, 2^5, 2^6, 2^7. Because the first four numbers are 1000, we know that is 2^7 (128). The second 4 numbers are 0010, which we know that is 2^1 (2). Remember that we ignore the 0. Therefore, 128 + 2 = 130
@janikti86057 жыл бұрын
is this single precision numbers?
@aqleemasajid7 жыл бұрын
yes, which is 32 bits.
@angrycolonel19572 жыл бұрын
I watched the vid a few times and still don't know whats he doing :(
@SkillnoMusic4 жыл бұрын
can you teach my teacher how to teach?
@tarabarghian48435 жыл бұрын
(C1F70000)IEEE754−32bit=(?)10 i dont know how to solve some sample like this yet :(:(
@haroldtran10238 жыл бұрын
if p
@Lietuvis7778 жыл бұрын
+tran khanh then the point goes to the opposite side (left)
@haroldtran10238 жыл бұрын
tks you =))
@sarints31477 жыл бұрын
how do u convert 1000000000000000011111111111111
@sheepman62916 жыл бұрын
you sound like ryan reynolds.
@ABHA11117 жыл бұрын
suppose no. given was : 010000000 11000000 0000 0000 0000 0000 then as per my calculations P=1 ..., so in 1.1100000..... i shifted one decimal which gives me 11.100000..... so deciaml representation of (11) is 3 but answer is given 3.5
@viniciustinoco52616 жыл бұрын
I know it is too late for you but for new person ... The answer is, to the left of "." you will have 2^-1, 2^-2 ... so you have 11 (equals 3) + 2^-1 (equal 0.5). The final result is 3.5.
@syedaiqrawaseem4136 жыл бұрын
why are u adding powers in minus ? and why you add 2^-1 in 3? whats the logic behind it please elaborate
@hidayetelayadi23218 жыл бұрын
affter doing every thing i got 1010.01 thats 10. ????
@Amonfobious8 жыл бұрын
10.25
@MrStraightface8 жыл бұрын
BIG OLE CHUNK OF CRAP. kudos lol
@TheJupiteL8 жыл бұрын
+Chris G lol, the channel name should be EducationAboutStufforwhatever.
@DeathToCockroaches7 жыл бұрын
How the hell is "P" = 3?
@dotexpress96897 жыл бұрын
130-127
@ajiteshbansal89984 жыл бұрын
@@dotexpress9689 how did you considered the bias as 127 ???
@dieudobizitech23168 жыл бұрын
je suis pour votre exlicaction
@bonfacemwangi67284 жыл бұрын
good explanation, but the value you chose is way too easy. in the end i find my self still lost
@yusufklc11843 жыл бұрын
bro come on, wtf is 9.0??????? or cant u calculate 9.057 ? huh
@PauloConstantino1676 жыл бұрын
wow you are very slow, you sure you understand it ?