SKU: 13556737359

The Calculus of Happiness: How a Mathematical Approach to Life Adds Up to Health, Wealth, and Love

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The Calculus of Happiness: How a Mathematical Approach to Life Adds Up to Health, Wealth, and LoveHow math holds the keys to improving one's health, wealth, and love life What's the best diet for overall health and weight management? How can we change our finances to retire earlier? How can we maximize our chances of finding our soul mate? In The Calculus of Happiness, Oscar Fernandez shows us that math yields powerful insights into health, wealth, and love. Relying on only high school level math (precalculus with a dash of calculus), Fernandez

How math holds the keys to improving one's health, wealth, and love life

What's the best diet for overall health and weight management? How can we change our finances to retire earlier? How can we maximize our chances of finding our soul mate? In The Calculus of Happiness, Oscar Fernandez shows us that math yields powerful insights into health, wealth, and love. Relying on only high school-level math (precalculus with a dash of calculus), Fernandez uses everyday experiences to provide context for his mathematical insights and guides us through surprising results. Important formulas are linked to a dozen free online interactive calculators on the book's website, allowing one to personalize equations. Every chapter ends with a summary of essential lessons and takeaways, and for advanced math fans, Fernandez includes the mathematical derivations in the appendices.



Binding Type: Paperback
Publisher: Princeton University Press
Published: 07/09/2019
ISBN: 9780691192314
Pages: 176
Weight: 0.60lbs
Size: 8.90h x 5.60w x 0.60d
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SKU: 13556737359

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lynda
Pawtucket, US
★★★★★ 5
Not for toddlers
Size: 10, Color: Black
Not for a toilet boy size 10. Really nice shirt
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Reviewed in the United States on December 27, 2025
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Miranda Bubel
Port Orchard, US
★★★★★ 5
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This little cowboy shirt is adorable! The fabric is soft and comfortable for my toddler, and it held up well after a couple of washes without shrinking or fading. The snaps make it super easy to get on and off, which is a lifesaver with a wiggly kid. The stitching and details give it a genuine western look, and my child loved wearing it. No complaints here—it’s a fun, well-made piece that looks even cuter in person.
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Reviewed in the United States on August 17, 2025
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Paoja
Birmingham, US
★★★★★ 5
Great Quality Shirt and Nice Color
Size: 14, Color: Khaki, Size: 14, Color: Khaki
This cowboy shirt is excellent, but make sure to size up if your child is bigger. My son is 9 years old, and I had to order the 14-year size for a good fit. The fabric is very good quality, and I really loved the color. It looks great and feels warm
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Reviewed in the United States on August 16, 2025
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Joseph
Lexington, US
★★★★★ 5
A good First Communion suit
Size: 6, Color: White, Size: 6, Color: White
This suit looks and feels really nice even though it’s not 100% linen. My son is an average size 7 year old, but I got a size 6 so that the fit would be nice and snug and not loose and baggy. It was the right choice. Comes with a bow tie which is nice, a tie (which is very cheap and poorly made) and a pocket square.
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Reviewed in the United States on April 29, 2026
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Cheila
Phoenix, US
★★★★★ 5
Very stylish💜💜
Size: 6, Color: Light Blue, Size: 6, Color: Light Blue
This little suit for boys is very stylish. I bought it for my grandson for a wedding occasion and it looked very nice. The fabric is not too thick so for the summer wedding it was great. I pick the blue color and it looked fantastic!
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Reviewed in the United States on March 16, 2026

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