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Equals one

cryptic roadside ad

A series of cryptic messages appeared over the past few days on various social media accounts affiliated with the band. They revolve around a new handwritten logo and an elaborate math equation, which (if my calculus serves me right) equals to one.


The timing and style of the said cryptic messages make some people to believe that this is the start of the promotional campaign for the anticipated new album.

Thanks to Tobias Janaschke for the heads-up.

39 Comments to “Equals one”:

  1. 1
    Uwe Hornung says:

    Oh, that was too easy, I immediately saw what that equation meant, can’t we have something a bit less obvious next time?

    🤣 Forget it, I’m hopeless at this sort of stuff, that is why I studied law.

    Deep Purple, in their winter years, finally have something they never had before: A record company that actually gives their promotion some thought, love and finesse. That is heartwarming to see.

  2. 2
    AndreA says:

    No patience!
    I can’t wait uuuuuntiiill tomorroooow!

  3. 3
    Rajaseudun Rampe says:

    Sixteen sec video not bad! Exciting. Whoosh would have been a fantastic last album for any band.

  4. 4
    MacGregor says:

    Unchain your brain. Cheers.

  5. 5
    Ninio says:

    I’ll buy this album anyway, but I really want to like it.

  6. 6
    Phil says:

    Reckon it will be on the heavy side
    Bring it on:)

  7. 7
    Adel says:

    I can only speak for myself by saying ‘Show me the money’ as in ‘Show me the material’ so sorry guys I take everything else with a pinch of salt but marketing is a big art nowadays and generate lots of money.
    I play, I listen, I decide.
    Trust your eyes when it comes to music.
    Peace ✌️

  8. 8
    Christof says:

    @Uwe #1: I had a meeting with a notary yesterday who was mumbling a contract text to me in a German language which was nearly impossible to understand (hey, and I’m a German mother tongue although with some Swabian accent). So I was reassured that studying physics instead of law was the right choice for me ;-).
    The formula tickled me nicely and really cried at me to tackle it. However, as I finished my studies some 30 years ago, I had to find out that my mathematical instruments are a bit rusty now so I took a while to solve it I have to admit.
    But I can confirm that the result is one :-)!

  9. 9
    janbl says:

    Seeing the tour dates in July I wonder where they will introduce the new album maybe Montreux Jazz Festival or maybe somewhere in Germany?

  10. 10
    Ole says:


    The formula looks like a mix of calculus expressions, but it’s not one single coherent formula or function. It seems to be a combination of separate mathematical expressions, perhaps for practice or to test understanding of different calculus concepts. Here’s a breakdown of the components:

    1. The first part seems to be a limit expression, which is a fundamental concept in calculus for determining the value that a function approaches as the input approaches some value.

    2. Next, there’s an expression with complex numbers \( 3i \) and \( \sqrt[3]{i} \). Complex numbers involve the square root of negative one, denoted as \( i \), and they’re a significant part of complex analysis, a branch of mathematics dealing with functions that operate on complex numbers.

    3. The integral expression \( \int x^2 dx \) represents the area under the curve of \( x^2 \) over a certain interval, which is a basic concept in integral calculus.

    4. Following that is another limit involving \( m \), which could be part of a sequence or series converging to some value as \( m \) approaches infinity.

    5. The last part is another integral, this time with what looks to be a rational function inside the integral sign. Rational functions and their integrals are another topic in calculus.

    6. At the end, there is a series sum expression involving the terms \( \frac{2}{3!} \), \( \frac{2}{3!} \), and \( \frac{1}{3!} \), which looks like terms of a Taylor or Maclaurin series expansion for a function.

    These components are commonly found in calculus textbooks and would be used to practice different techniques in differential and integral calculus as well as series and sequences. However, without more context or a unified equation, this collection of expressions doesn’t represent a particular formula used in mathematics or applied fields. It’s possible that this could be a part of a larger problem or set of problems designed for educational purposes.

    So, if x=2 and y=6, what is the value?
    Based on the expressions that can be evaluated with the provided values:

    1. The antiderivative of \( x^2 \) at \( x = 2 \) is \( \frac{2^3}{3} \) which equals approximately \( 2.67 \).
    2. The sum of the series \( \frac{2}{3!} + \frac{2}{3!} + \frac{1}{3!} \) is approximately \( 0.83 \).

    The other parts of the formula are either limits or definite integrals that do not require or cannot use the values \( x = 2 \) or \( y = 6 \) to calculate a numerical result.

    Or, am I perhaps overthinking this? 😉 With a little assistance from my companion ChatGPT 4.

  11. 11
    Christoph says:

    My rusty knowledge on integrals, determinants and limit had to be reactivated… I am still struggling with the second part of the equation, maybe someone could help?

  12. 12
    Uwe Hornung says:

    Wouldn’t it be fun if they used the complete math equation as the title for the new album? ☝️😜 That would cause some headaches among people trying to find a meaningful abbreviation for it.

  13. 13
    Tony says:

    I love it and I need it
    I bleed it
    Yeah, it’s a wild hurricane ( I hope ……. c’mon guys !!)

  14. 14
    Good Golly says:

    Yeah, a year with a new DP album is gonna be a good one for sure! In my opinion the band have been doing the right thing over the past years and decades: don’t give a f… about what record companies, critics, or some of their fans (more accurately: fans of Purple with Blackmore) say they should be (should have been) doing. Instead: play amazing live gigs, write and record great music, keep on touring as long as you gooddamn please (or your body will let you) and have fun!!

    Keep on rocking almighty Deep Purple lml

  15. 15
    Uwe Hornung says:

    Is there mathematician folk among us I cry?!!!


    And I thought you guys were all – well, sort of … – normal.

  16. 16
    Nick says:


    1) first limit can be resolved by differentiating:
    d(sin(x)) / dx = cos(x), equals 1 at x=0

    2) these are not complex numbers, i j k with hats are unit vectors in cartesian coordinates. magnitude of the resulting vector is sqrt(3^2 + 2^2 + 3) = 4

    3) the integral is equal to half of a 2*2 square area = 2

    4) this series, more commonly written as (1+1/m)^m, converges to e = 2.718281828…

    5) integral of one is the difference of limits, i.e. e-1 (which nicely cancels out the irrationals)

    6) this is a geometric series with a=r=1/2, which for |r|<1 converges to a/(1-r)=1

    7) this is a 3-by-3 matrix determinant, which solves to (-1)

    so, we have:
    2*1 + 4 – 2 – e + (e-1) – 1 + (-1) = 1

  17. 17
    Kerry says:

    Equals One (or =1) will likely be the albums ‘common title’, since that’s what they are calling the upcoming tour, but it would be great if they used the full equation for the title!

  18. 18
    Ted The Mechanic says:

    I ran this by a former classmate, he being an astute physicist who idolized Einstein. At first glance and calculations, he believes this is just a long, tedious, and complicated way of equating this to E = MC2.

    I advised him to have another go what with many theories being relative.


  19. 19
    Uwe Hornung says:

    MC2? I only know MC5, kick out the jams, muthafuckas!


  20. 20
    Phil says:

    Remember the movie Good Will Hunting. Maybe he has the answer:)

  21. 21
    MacGregor says:

    Probably just Ian Gillan scribbling something down for a song idea, we know what he is like. Seriously though I appreciate the mathematics from some here, thanks. I was appalling at maths at school & have deliberately avoided anything too difficult along those lines ever since. But I respect the people who are into it, well done. Cheers.

  22. 22
    BoswellsJohnson says:

    I think =1 will be pronounced “unity”

  23. 23
    Need lubrication says:

    This makes me very happy.

  24. 24
    janbl says:

    I found this somewhere on the net:


  25. 25
    janbl says:

    Or this:


  26. 26
    Orhun Yakin says:

    This one is from Darker Than Blue…


  27. 27
    lazyolaf says:

    Oh what a joy to hear this great news – can’t wait till 19th july, will preorder as soon as possible. Maybe some nice word puzzles by IG in titles like “Pictures of … You”. ” Lazy … Sod” and “No money to … BURN”?

  28. 28
    marcus says:

    The t-shirts have a different design, but you can get the “maths” on the hoodie.

    I have a sinking feeling I will have give in and order one before lunch.

    Listening to Zurich ’87

  29. 29
    MacGregor says:

    The new younger guitarist Simon McBride needs to grow his hair longer & then let it down a little. I thought I was worried when Bonnet joined Rainbow. More seriously now & in regards to the box set, there will be one chap here salivating big time. Uwe, when will your abode run out of storage room? Cheers.

  30. 30
    Stathis says:

    There could well be a couple of “singles” released before July. “Portable Door” would not be a surprise.

  31. 31
    Uwe Hornung says:

    “I was appalling at maths at school & have deliberately avoided anything too difficult along those lines ever since.”

    We all have to be gentle with the Tasmanian non-calculus on this, most drummers have issues counting beyond their double bass drum and the set of toms …


  32. 32
    Nohrmann says:

    The first taster of the album will arrive on April 30, when the members drop the lead single.

  33. 33
    Attila says:

    There is a lot of infotmation about the new album all over the place.

  34. 34
    Kidpurple says:

    Math makes my brain burn .
    Ready for my ears to burn!
    Package looks very promising!!

  35. 35
    Uwe Hornung says:

    It’s gonna be a good year.

  36. 36
    MacGregor says:

    @ 31- “We all have to be gentle with the Tasmanian non-calculus on this, most drummers have issues counting beyond their double bass drum and the set of toms …
    Double????? single Uwe, keep it simple please. That is getting far too complicated, he he he. Cheers.

  37. 37
    Rock Voorne says:

    I recall Ritchie kinda complaining the other guys went too cerebral for him, with their computers et all.

    He preferred more “rough” hobbies like soccer.
    Something along those lines. I think it was HOBL era.

    Recently I read he had placed stents for his heart.

    I wonder aside from walking with Candice through the woods, searching for fairies humming BACH tunes, if or when he stopped playing the demanding soccer activity.

    I often heard from soccerplayers having trouble with their knees.

    I dont know how Glenn overused his knees but they were replaced, so I read, some years ago and he runs around the stage like that cartooncharactre….

    Today some let things like that replaced with titanium new ones. I think Glenns are Titanium as well.

    My cousin in NJ /USA who did heavy labour had to replace a shoulderpart, also Titanium.
    It seems, something I already heard decades ago in the Gym, shoulders are hard to get back from.
    So I assume he has to keep himself within boundaries but I m afraid he is too hardheaded to accept such a thing.

    Weird, an old neigbour, RIP Bob , who gave kickboxing et all classes in the park way into his 80 s did have knees replaced but somehow it was of no use to him so he ended up in a scootmobile.
    And that after a life obsessed with soccer, kickboxing, lifting weights etc….

    Made me hesitate joining his class when I was already struggling with my joints and muscles.

    I did swim like a man posessed but still got whipped with pains and then Bursitis.

    “Uncle Bob”got way too fat for his own good, lack of movement, and though never having smoked he also aquired that illness related to the lungs. COPD?

    Certain sports are not for everyone.

    I always hated math, it ruined years of my life and I tried too long, hardheaded as well, to get my brain around it.

    Amazing that Gillan after a life full of booze knows to make an equation.

  38. 38
    Uwe Hornung says:

    RV, I actually saw Ritchie play soccer once, in Frankfurt on a day off on the THOBL Tour. The game was for charity. Ian Gillan played too and I think Little Ian and Roger, but not Jon. Blackmore is a good player, but he is what in German we call an “Abstauber”, a goalhanger and poacher waiting for his goal chance like a vulture, but avoiding exhausting leg work! 😅 Big Ian played with great verve and commitment, but zero technique. 😁 (I personally suck at soccer, so really shouldn’t point the finger.)

    Knee joint replacement 🦿urgery? Been there, done that! Since 2018 my right knee joint is made of a reliable titanium/cobalt-chromium/

    https://j.gifs.com/vMakY1.gif ,

    I’d recommend it to anyone (with a serious knee condition). I was in bad pain and restricted movability before (those bad Hornung-genes as knees go and two bicycle accidents in the 90ies), a keyhole surgery had only helped for a few years (the very good doctor had made me aware of that, he also did the replacement surgery). I’d say that my (artificial) knee in its present state is at about 90-95% of what my youthful natural knee joint could once do, the one relevant impediment is really only walking stairs down (walking them up is no issue), the sideways maneuverability of an artificial knee joint is not the same as of a natural one so it doesn’t work as reliably going downstairs even though it is even then painfree. But other than that I don’t even think about it. Even kneeling on it doesn’t feel weird anymore.

    Oh wait, there is one curious effect in winter: When I’ve ridden my motorbike in the cold for a while and my body is really cooled down, then it takes quite a while for my right knee to return to regular body warmth, that metal in it takes longer to warm up than a living bone. But it’s something I’ve grown accustomed to and – always look at the brighter side of things – I can rest a beer can on it and it will stay fresh and cool longer!

  39. 39
    Rock Voorne says:

    @ Uwe

    Nice story.

    I do have bad knees which I in the past knew how to buffer doing weightlifting , legexercises and biked a lot, swam a lot.

    PowerYoga once took me from the depths of years in pain.
    RSI kind of pains went on for 6 years.

    Then I lost almost all of it the year I fell in love(sic)and doing this combination of swimming, yoga, biking, a lot of sauna(No beers allowed)and doing a bit of weightlifting…..

    But(Very long story)since 2020 thing went wrong….

    Since I hardly move around.

    My knees and hernia do not always plague me but inbetween they really drain me.

    I m not sure if I ll ever get around to sports anymore, let alone “replacements” of any kind.


    Somehow I seem to recall he was known for saying : “You must know to pick your fights.”?

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