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    CalmWorldShop

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    Math Lovers – Formulas, Algebra & Geometry

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    Item preview, Pythagorean Theorem Math Life Quote Design designed and sold by CalmWorldShop.
    Pythagorean Theorem Math Life Quote Design Classic T-Shirt
    $15.39
    $21.99 (30% off)
    Item preview, Riemann Sum Integral — It All Adds Up designed and sold by CalmWorldShop.
    Riemann Sum Integral — It All Adds Up Classic T-Shirt
    $15.39
    $21.99 (30% off)
    Item preview, Local Maximum ≠ Global Maximum — Keep Searching designed and sold by CalmWorldShop.
    Local Maximum ≠ Global Maximum — Keep Searching Classic T-Shirt
    $15.39
    $21.99 (30% off)
    Item preview, Limit Approaching L — Keep Approaching designed and sold by CalmWorldShop.
    Limit Approaching L — Keep Approaching Essential T-Shirt
    $16.49
    $21.99 (25% off)
    Item preview, There Is Always Another Step Math Sequence designed and sold by CalmWorldShop.
    There Is Always Another Step Math Sequence Extra Soft T-Shirt
    $20.61
    $27.49 (25% off)
    Item preview, Small Gains Compound Math Formula Design designed and sold by CalmWorldShop.
    Small Gains Compound Math Formula Design Boxy T-Shirt
    $20.61
    $27.49 (25% off)
    Item preview, Optimize What Matters Math Optimization Design designed and sold by CalmWorldShop.
    Optimize What Matters Math Optimization Design Classic T-Shirt
    $15.39
    $21.99 (30% off)
    Item preview, Same Direction Different Paths Math Design designed and sold by CalmWorldShop.
    Same Direction Different Paths Math Design Boxy T-Shirt
    $20.61
    $27.49 (25% off)

    Collections

    3 collections

    Math Lovers – Formulas, Algebra & Geometry

    Crack the Code

    Coding & Programming

    Shop

    90 items
    90 items
    Item preview, Pythagorean Theorem Math Life Quote Design designed and sold by CalmWorldShop.
    Pythagorean Theorem Math Life Quote Design Pullover Sweatshirt
    $28.86
    $38.49 (25% off)
    Item preview, Balance Not Symmetry Math Life Quote Design designed and sold by CalmWorldShop.
    Balance Not Symmetry Math Life Quote Design Oversized T-Shirt
    $20.61
    $27.49 (25% off)
    Item preview, I Don't Hate You I Hate Your Long Pimples – Funny Table Tennis Ping Pong Gift designed and sold by CalmWorldShop.
    I Don't Hate You I Hate Your Long Pimples – Funny Table Tennis Ping Pong Gift Sticker
    $2.32
    $2.90 (20% off)
    Item preview, Pi Digits Spiral — Still Not Finished designed and sold by CalmWorldShop.
    Pi Digits Spiral — Still Not Finished Sticker
    $2.32
    $2.90 (20% off)
    Item preview, Fresh Rubber Same Excuses – Funny Table Tennis Ping Pong Player Gift designed and sold by CalmWorldShop.
    Fresh Rubber Same Excuses – Funny Table Tennis Ping Pong Player Gift Sticker
    $2.32
    $2.90 (20% off)
    Item preview, A Mathematical Way to Say I Love You – Heart Equation Math Valentine Gift designed and sold by CalmWorldShop.
    A Mathematical Way to Say I Love You – Heart Equation Math Valentine Gift Relaxed T-Shirt
    $18.14
    $24.19 (25% off)
    Item preview, My Knees Are 50. My Forehand Is 25. – Funny Table Tennis Design designed and sold by CalmWorldShop.
    My Knees Are 50. My Forehand Is 25. – Funny Table Tennis Design Sticker
    $2.32
    $2.90 (20% off)
    Item preview, Should've Paid Attention In Math Class – Funny Carpenter & Construction Design designed and sold by CalmWorldShop.
    Should've Paid Attention In Math Class – Funny Carpenter & Construction Design Pullover Hoodie
    $28.86
    $38.49 (25% off)
    Item preview, The Math Ain't Mathing – Funny Carpenter & Contractor Design designed and sold by CalmWorldShop.
    The Math Ain't Mathing – Funny Carpenter & Contractor Design Essential T-Shirt
    $16.49
    $21.99 (25% off)
    Item preview, Please Show Your Work Funny Math Design designed and sold by CalmWorldShop.
    Please Show Your Work Funny Math Design Classic T-Shirt
    $15.39
    $21.99 (30% off)
    Item preview, This Otter Be Illegal Funny Math Design designed and sold by CalmWorldShop.
    This Otter Be Illegal Funny Math Design Classic T-Shirt
    $15.39
    $21.99 (30% off)
    Item preview, Dear Math I Liked You Before Letters designed and sold by CalmWorldShop.
    Dear Math I Liked You Before Letters Essential T-Shirt
    $16.49
    $21.99 (25% off)
    Item preview, Your Well-Being Is Their Peace – Tree of Life Yin Yang Design designed and sold by CalmWorldShop.
    Your Well-Being Is Their Peace – Tree of Life Yin Yang Design Relaxed Fit T-Shirt
    $19.62
    $24.53 (20% off)
    Item preview, Stop Wasting Time | Stoic Philosophy Inspired by Marcus Aurelius designed and sold by CalmWorldShop.
    Stop Wasting Time | Stoic Philosophy Inspired by Marcus Aurelius Classic T-Shirt
    $15.39
    $21.99 (30% off)
    Item preview, Change The Angle – Geometry Perspective Pun Shirt designed and sold by CalmWorldShop.
    Change The Angle – Geometry Perspective Pun Shirt Classic T-Shirt
    $15.39
    $21.99 (30% off)
    Item preview, Same Direction Different Paths Math Design designed and sold by CalmWorldShop.
    Same Direction Different Paths Math Design Graphic T-Shirt
    $20.61
    $27.49 (25% off)
    Item preview, Optimize What Matters Math Optimization Design designed and sold by CalmWorldShop.
    Optimize What Matters Math Optimization Design Art Board Print
    $13.63
    $16.04 (15% off)
    Item preview, Small Gains Compound Math Formula Design designed and sold by CalmWorldShop.
    Small Gains Compound Math Formula Design Boxy T-Shirt
    $20.61
    $27.49 (25% off)
    Item preview, There Is Always Another Step Math Sequence designed and sold by CalmWorldShop.
    There Is Always Another Step Math Sequence Sticker
    $2.32
    $2.90 (20% off)
    Item preview, Limit Approaching L — Keep Approaching designed and sold by CalmWorldShop.
    Limit Approaching L — Keep Approaching Classic T-Shirt
    $15.39
    $21.99 (30% off)
    Item preview, Riemann Sum Integral — It All Adds Up designed and sold by CalmWorldShop.
    Riemann Sum Integral — It All Adds Up Classic T-Shirt
    $15.39
    $21.99 (30% off)
    Item preview, Local Maximum ≠ Global Maximum — Keep Searching designed and sold by CalmWorldShop.
    Local Maximum ≠ Global Maximum — Keep Searching Spiral Notebook
    $12.14
    $14.29 (15% off)
    Item preview, I Love Math — Math Symbol Wordplay designed and sold by CalmWorldShop.
    I Love Math — Math Symbol Wordplay Baseball Cap
    $18.47
    $23.09 (20% off)
    Item preview, Married Programmer Joke: loveHer() Anniversary Shirt designed and sold by CalmWorldShop.
    Married Programmer Joke: loveHer() Anniversary Shirt Poster
    $15.83
    $19.79 (20% off)
    Item preview, Undefined Is Not Null: There Is a Difference – JavaScript Developer Humor designed and sold by CalmWorldShop.
    Undefined Is Not Null: There Is a Difference – JavaScript Developer Humor Poster
    $15.83
    $19.79 (20% off)
    Item preview, CODER Funny Code Jokes Programmer Developer designed and sold by CalmWorldShop.
    CODER Funny Code Jokes Programmer Developer Sticker
    $2.32
    $2.90 (20% off)
    Item preview, Spot the One You Don't Know — Math & Physics Formula designed and sold by CalmWorldShop.
    Spot the One You Don't Know — Math & Physics Formula Poster
    $15.83
    $19.79 (20% off)
    Item preview, CRUD Delete Responsibly Funny Programmer Humor designed and sold by CalmWorldShop.
    CRUD Delete Responsibly Funny Programmer Humor Sticker
    $2.32
    $2.90 (20% off)
    Item preview, LGTM PR Approved Funny Code Review Programmer designed and sold by CalmWorldShop.
    LGTM PR Approved Funny Code Review Programmer Classic T-Shirt
    $15.39
    $21.99 (30% off)
    Item preview, Time Is Life – Seneca Inspired Stoic Quote | Minimalist Typography designed and sold by CalmWorldShop.
    Time Is Life – Seneca Inspired Stoic Quote | Minimalist Typography V-Neck T-Shirt
    $18.96
    $25.29 (25% off)
    Item preview, Find Your Balance Christmas Tree Math Symmetry designed and sold by CalmWorldShop.
    Find Your Balance Christmas Tree Math Symmetry Long Sleeve T-Shirt
    $18.56
    $24.74 (25% off)
    Item preview, Volume of Happiness Christmas Ornament Math designed and sold by CalmWorldShop.
    Volume of Happiness Christmas Ornament Math Lightweight Sweatshirt
    $24.74
    $32.99 (25% off)
    Item preview, Integral Calculus: Nothing You Do Is Too Small Shirt designed and sold by CalmWorldShop.
    Integral Calculus: Nothing You Do Is Too Small Shirt All Over Print Tote Bag
    $16.62
    $20.78 (20% off)
    Item preview, Dad Who Codes: while (family.awake) Programmer Shirt designed and sold by CalmWorldShop.
    Dad Who Codes: while (family.awake) Programmer Shirt Poster
    $15.83
    $19.79 (20% off)
    Item preview, Control What You Can – Epictetus Inspired Stoic Quote | Minimalist Typography designed and sold by CalmWorldShop.
    Control What You Can – Epictetus Inspired Stoic Quote | Minimalist Typography Pullover Hoodie
    $28.86
    $38.49 (25% off)
    Item preview, My Agent Says It Works: Funny AI Coding Joke designed and sold by CalmWorldShop.
    My Agent Says It Works: Funny AI Coding Joke Fitted V-Neck T-Shirt
    $18.96
    $25.29 (25% off)
    Item preview, Single Programmer Joke: findGirlfriend() Code Shirt designed and sold by CalmWorldShop.
    Single Programmer Joke: findGirlfriend() Code Shirt Classic T-Shirt
    $15.39
    $21.99 (30% off)
    Item preview, Modern Software Engineering: promptAgain() Dev Joke designed and sold by CalmWorldShop.
    Modern Software Engineering: promptAgain() Dev Joke Transparent Sticker
    $2.61
    $3.26 (20% off)
    Item preview, Expectation vs Reality: Write Code vs Prompt AI – Developer Humor designed and sold by CalmWorldShop.
    Expectation vs Reality: Write Code vs Prompt AI – Developer Humor Essential T-Shirt
    $16.49
    $21.99 (25% off)
    Item preview, Job Title: Software Developer, Actual Job: AI Prompt Writer – Developer Humor designed and sold by CalmWorldShop.
    Job Title: Software Developer, Actual Job: AI Prompt Writer – Developer Humor Classic T-Shirt
    $15.39
    $21.99 (30% off)
    Item preview, Definition of Done: Someone Changed the Requirement – Agile Humor designed and sold by CalmWorldShop.
    Definition of Done: Someone Changed the Requirement – Agile Humor Sticker
    $2.32
    $2.90 (20% off)
    Item preview, Velocity++ Quality-- Metric Optimized – Programmer Humor designed and sold by CalmWorldShop.
    Velocity++ Quality-- Metric Optimized – Programmer Humor Essential T-Shirt
    $16.49
    $21.99 (25% off)
    Item preview, Estimate First. Regret Later. Agile Planning Poker Humor designed and sold by CalmWorldShop.
    Estimate First. Regret Later. Agile Planning Poker Humor Classic T-Shirt
    $15.39
    $21.99 (30% off)
    Item preview, StoryPoints !== Hours – Funny Agile Developer Design designed and sold by CalmWorldShop.
    StoryPoints !== Hours – Funny Agile Developer Design Transparent Sticker
    $2.61
    $3.26 (20% off)
    Item preview, Protect The Life They Gave You – Mountain Sunset Tattoo Art designed and sold by CalmWorldShop.
    Protect The Life They Gave You – Mountain Sunset Tattoo Art Sticker
    $2.32
    $2.90 (20% off)
    Item preview, Expect Less, Appreciate More – Seneca Inspired Stoic Quote | Minimalist Typography designed and sold by CalmWorldShop.
    Expect Less, Appreciate More – Seneca Inspired Stoic Quote | Minimalist Typography Classic T-Shirt
    $15.39
    $21.99 (30% off)
    Item preview, Simple to Send, Impossible to Read — Caesar Cipher Puzzle designed and sold by CalmWorldShop.
    Simple to Send, Impossible to Read — Caesar Cipher Puzzle Premium Oversized Hoodie
    $39.59
    $52.79 (25% off)
    Item preview, Turn Up the Volume — Math & Music Geometry designed and sold by CalmWorldShop.
    Turn Up the Volume — Math & Music Geometry Essential T-Shirt
    $16.49
    $21.99 (25% off)
    Item preview, I Have My Limits — Calculus Limit Definition Quote designed and sold by CalmWorldShop.
    I Have My Limits — Calculus Limit Definition Quote Premium Oversized Hoodie
    $39.59
    $52.79 (25% off)
    Item preview, Math – The Only Subject That Counts | Funny Mathematics Quote designed and sold by CalmWorldShop.
    Math – The Only Subject That Counts | Funny Mathematics Quote Poster
    $15.83
    $19.79 (20% off)
    Item preview, Happiness Is Not a Destination – Way of Life Inspirational Quote designed and sold by CalmWorldShop.
    Happiness Is Not a Destination – Way of Life Inspirational Quote Premium T-Shirt
    $23.93
    $31.90 (25% off)
    Item preview, Be Like Pi – Useful, Irrational, and Never Ending | Math Nerd Quote designed and sold by CalmWorldShop.
    Be Like Pi – Useful, Irrational, and Never Ending | Math Nerd Quote Classic T-Shirt
    $15.39
    $21.99 (30% off)
    Item preview, To Understand Recursion, You Must First Understand Recursion — Funny Math Nerd Quote designed and sold by CalmWorldShop.
    To Understand Recursion, You Must First Understand Recursion — Funny Math Nerd Quote Classic T-Shirt
    $15.39
    $21.99 (30% off)
    Item preview, Do You Know Why It Works? – Calculus Integral Math Design designed and sold by CalmWorldShop.
    Do You Know Why It Works? – Calculus Integral Math Design Boxy T-Shirt
    $20.61
    $27.49 (25% off)
    Item preview, Think Solve Evolve – Mathematics & STEM Motivation designed and sold by CalmWorldShop.
    Think Solve Evolve – Mathematics & STEM Motivation Spiral Notebook
    $12.14
    $14.29 (15% off)
    Item preview, Heavy Work Creates Real Strength | Fitness Motivation designed and sold by CalmWorldShop.
    Heavy Work Creates Real Strength | Fitness Motivation Extra Soft T-Shirt
    $20.61
    $27.49 (25% off)
    Item preview, Keep Moving – Motivational Cycling & Bicycle Quote designed and sold by CalmWorldShop.
    Keep Moving – Motivational Cycling & Bicycle Quote Essential T-Shirt
    $16.49
    $21.99 (25% off)
    Item preview, Vigenère Cipher Puzzle – Crack the Encrypted Message | Math & Code Nerd Design designed and sold by CalmWorldShop.
    Vigenère Cipher Puzzle – Crack the Encrypted Message | Math & Code Nerd Design Classic T-Shirt
    $15.39
    $21.99 (30% off)
    Item preview, Pain Builds Strength – Push Through When Others Quit | Obstacle Race Motivation designed and sold by CalmWorldShop.
    Pain Builds Strength – Push Through When Others Quit | Obstacle Race Motivation Classic T-Shirt
    $15.39
    $21.99 (30% off)
    Item preview, Stop Wasting Time – White Minimalist Stoic Quote Inspired by Marcus Aurelius designed and sold by CalmWorldShop.
    Stop Wasting Time – White Minimalist Stoic Quote Inspired by Marcus Aurelius Art Board Print
    $8.82
    $10.37 (15% off)
    Item preview, Happy Wife Happy Life – Funny Marriage Quote designed and sold by CalmWorldShop.
    Happy Wife Happy Life – Funny Marriage Quote Essential T-Shirt
    $16.49
    $21.99 (25% off)
    Item preview, Stability – Keep Moving Forward | Motivational Sailing Quote designed and sold by CalmWorldShop.
    Stability – Keep Moving Forward | Motivational Sailing Quote Classic T-Shirt
    $15.39
    $21.99 (30% off)
    Item preview, Happy Wife Happy Kids Happy Pets Happy Me – Happy Life designed and sold by CalmWorldShop.
    Happy Wife Happy Kids Happy Pets Happy Me – Happy Life Relaxed Fit T-Shirt
    $19.62
    $24.53 (20% off)
    Item preview, Time Is Life – White Minimalist Stoic Quote Inspired by Seneca designed and sold by CalmWorldShop.
    Time Is Life – White Minimalist Stoic Quote Inspired by Seneca Classic T-Shirt
    $15.39
    $21.99 (30% off)
    Item preview, What You Don't Change, You Choose – Minimalist Motivational Quote designed and sold by CalmWorldShop.
    What You Don't Change, You Choose – Minimalist Motivational Quote Pullover Hoodie
    $28.86
    $38.49 (25% off)
    Item preview, Know Yourself – Socrates Inspired Philosophy Quote | Minimalist Typography designed and sold by CalmWorldShop.
    Know Yourself – Socrates Inspired Philosophy Quote | Minimalist Typography Classic T-Shirt
    $15.39
    $21.99 (30% off)
    Item preview, Know Yourself – White Minimalist Philosophy Quote Inspired by Socrates designed and sold by CalmWorldShop.
    Know Yourself – White Minimalist Philosophy Quote Inspired by Socrates Classic T-Shirt
    $15.39
    $21.99 (30% off)
    Item preview, Control What You Can – White Minimalist Stoic Quote Inspired by Epictetus designed and sold by CalmWorldShop.
    Control What You Can – White Minimalist Stoic Quote Inspired by Epictetus Desk Mat
    $25.33
    $31.67 (20% off)
    Item preview, Token Limit Reached — Switching To Human Mode designed and sold by CalmWorldShop.
    Token Limit Reached — Switching To Human Mode Oversized T-Shirt
    $20.61
    $27.49 (25% off)
    Item preview, Recursive Habit — Neon Math Code Design designed and sold by CalmWorldShop.
    Recursive Habit — Neon Math Code Design Sticker
    $2.32
    $2.90 (20% off)
    Item preview, Every Day Counts — Math Motivation Print designed and sold by CalmWorldShop.
    Every Day Counts — Math Motivation Print Pullover Hoodie
    $28.86
    $38.49 (25% off)
    Item preview, Spot the One You Don't Know — Math & Physics Formula designed and sold by CalmWorldShop.
    Spot the One You Don't Know — Math & Physics Formula Postcard
    $2.13
    $2.66 (20% off)
    Item preview, Euler's Identity Gold Badge – Math Meme designed and sold by CalmWorldShop.
    Euler's Identity Gold Badge – Math Meme Racerback Tank Top
    $17.67
    $23.55 (25% off)
    Item preview, Rubber Duck Detective & AI Robot Coding Humor designed and sold by CalmWorldShop.
    Rubber Duck Detective & AI Robot Coding Humor Active T-Shirt
    $20.61
    $27.49 (25% off)
    Item preview, Multitasking: Failing Everything At Once designed and sold by CalmWorldShop.
    Multitasking: Failing Everything At Once Essential T-Shirt
    $16.49
    $21.99 (25% off)
    Item preview, Same Mindset, New Conversation Partner designed and sold by CalmWorldShop.
    Same Mindset, New Conversation Partner Classic T-Shirt
    $15.39
    $21.99 (30% off)
    Item preview, The Tool Changed, The Why Didn't designed and sold by CalmWorldShop.
    The Tool Changed, The Why Didn't Pullover Hoodie
    $28.86
    $38.49 (25% off)
    Item preview, Life Has Ups And Downs, Check The Derivative designed and sold by CalmWorldShop.
    Life Has Ups And Downs, Check The Derivative Relaxed T-Shirt
    $18.14
    $24.19 (25% off)
    Item preview, Out Of Tokens, Coffee It Is designed and sold by CalmWorldShop.
    Out Of Tokens, Coffee It Is Fitted T-Shirt
    $16.08
    $21.44 (25% off)
    Item preview, Expect Less. Appreciate More. | Minimalist Stoicism Design Inspired by Seneca designed and sold by CalmWorldShop.
    Expect Less. Appreciate More. | Minimalist Stoicism Design Inspired by Seneca Art Print
    $19.35
    $24.19 (20% off)
    Item preview, AI Writes The Code, I Explain Why It's Wrong designed and sold by CalmWorldShop.
    AI Writes The Code, I Explain Why It's Wrong Classic T-Shirt
    $15.39
    $21.99 (30% off)
    Item preview, Enjoy What You Do – Do Work That Excites You Programmer Design designed and sold by CalmWorldShop.
    Enjoy What You Do – Do Work That Excites You Programmer Design Classic T-Shirt
    $15.39
    $21.99 (30% off)
    Item preview, What Does Success Mean? Coder Terminal Design designed and sold by CalmWorldShop.
    What Does Success Mean? Coder Terminal Design Classic T-Shirt
    $15.39
    $21.99 (30% off)
    Item preview, I Love Maths – Vintage Algebra & Geometry Math Lover Design designed and sold by CalmWorldShop.
    I Love Maths – Vintage Algebra & Geometry Math Lover Design Relaxed T-Shirt
    $18.14
    $24.19 (25% off)
    Item preview, If You Look For Reasons Not To Do It, Do It – Fear vs. Desire Motivational Design designed and sold by CalmWorldShop.
    If You Look For Reasons Not To Do It, Do It – Fear vs. Desire Motivational Design Active T-Shirt
    $20.61
    $27.49 (25% off)
    Item preview, Not Every Matrix Is Invertible – Linear Algebra Math Gift designed and sold by CalmWorldShop.
    Not Every Matrix Is Invertible – Linear Algebra Math Gift Extra Soft T-Shirt
    $20.61
    $27.49 (25% off)
    Item preview, Life Is What You Debug It – Funny Motivational Programmer T-Shirt designed and sold by CalmWorldShop.
    Life Is What You Debug It – Funny Motivational Programmer T-Shirt Oversized T-Shirt
    $20.61
    $27.49 (25% off)
    Item preview, Life is Logarithmic – Math Lovers T-Shirt with Golden Spiral & Log Curves designed and sold by CalmWorldShop.
    Life is Logarithmic – Math Lovers T-Shirt with Golden Spiral & Log Curves Classic T-Shirt
    $15.39
    $21.99 (30% off)
    Item preview, Prompt. Run. Regret. Debug. – Funny Vibe Coding Cycle T-Shirt for Programmers designed and sold by CalmWorldShop.
    Prompt. Run. Regret. Debug. – Funny Vibe Coding Cycle T-Shirt for Programmers Boxy T-Shirt
    $20.61
    $27.49 (25% off)
    Item preview, AI Wrote It, I Debugged It – Funny Programmer Design for Coders & Developers designed and sold by CalmWorldShop.
    AI Wrote It, I Debugged It – Funny Programmer Design for Coders & Developers Classic T-Shirt
    $15.39
    $21.99 (30% off)
    About CalmWorldShop
    • Uusimaa, Finland
    • 90 designs
    1
    Follower
    1
    Following
    34
    Favorited
    CalmWorldShop is for curious, logical minds — math lovers, programmers, and anyone who thinks in formulas. Designs built on real math, real code, and a bit of Stoic wisdom: clever enough to make you smile, accurate enough to make you nod, and thoughtful enough to stick with you.
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