Most of modern mathematics and physics derives from work of Leonhard Euler. Who has been described as “the most prolific mathematician of all time” and “the Mozart of mathematics”. But for all his achievements, “many so-called educated people have never heard of him.
His most famous single equation is Euler’s identity. It is said to be the equation that can link all of the constants of mathematics together. The equation combines five of the most important numbers in mathematics.
- 1 – the basis of all other numbers
- 0 – the concept of nothingness
- pi – the number that defines a circle
- e – the number that underlies exponential growth
- i – the “imaginary” square root of -1
The numbers all have many practical applications, including communication, navigation, energy, manufacturing, finance, meteorology and medicine. But that’s not all. Euler’s identity also contains the three most basic mathematical operations: addition, multiplication and exponentiation. What appeals to is that this equality connects some incredibly complicated and seemingly unrelated concepts in a surprisingly concise form.
Euler’s identity is amazing because it is simple to look at and yet incredibly profound.
• 85% organic ring-spun combed cotton, 15% recycled polyester
• Fabric weight: 8.8 oz/yd² (300 g/m²)
• Self-fabric double-layered hood
• Set-in sleeves
• Front pocket
• Inside self-fabric tape and half-moon at the back of the neck
• Matching round drawcords with metal tipping and eyelets
• Twin needle topstitch on armhole, sleeve, and bottom hems
• Single-needle topstitch on neckline and hood
• 1 × 1 rib at sleeves and bottom hem
• Split bottom side seams
Size guide
BODY LENGTH | CHEST WIDTH | SLEEVE LENGTH | |
XS (inches) | 32 ⅞ | 19 ¼ | 23 ⅜ |
S (inches) | 33 ⅝ | 20 ¼ | 23 ¾ |
M (inches) | 34 ⅜ | 21 ½ | 24 ¼ |
L (inches) | 35 ¼ | 22 ⅝ | 24 ⅜ |
XL (inches) | 35 ⅝ | 23 ¾ | 24 ⅝ |
BODY LENGTH | CHEST WIDTH | SLEEVE LENGTH | |
XS (cm) | 83.6 | 49 | 59.4 |
S (cm) | 85.3 | 51.6 | 60.5 |
M (cm) | 87.4 | 54.6 | 61.5 |
L (cm) | 89.4 | 57.4 | 62 |
XL (cm) | 90.4 | 60.5 | 62.5 |