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Home / ComputerGear Site Map / Math Pi Day 3.14 T-shirts & More / National Pi Day 3.14 Pi Symbol T-shirt

National Pi Day 3.14 Pi Symbol T-shirt

Item # 1356BK
National Pi Day 3.14 Pi Symbol T-shirt
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Regular Price: $19.99
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Mathematically inclined love this National Pi Day 3.14 Pi Symbol T-shirt Black

Mathematically inclined will appreciate this graphic expression of the number pi as the number 3.14159... wrapped around in the shape of the mathematical symbol for pi. Pi is a constant irrational, that is a constant that can be used to represent the ratio of any circle's circumference to its diameter in Euclidean geometry, which is the same as the ratio of a circle's area to the square of its radius. Being irrational, the decimal expansion never repeats or ends so the numbers on this Pi t-shirt keep going. Pi is used extensively in mathematical, science and engineering applications. Black 100% cotton T-shirt. (#1356) A ComputerGear exclusive. Item in stock unless noted above. The shirt to wear on Pi Day!
See a musical interpretation of the number pi below!

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Reviews

42 review(s) WRITE A REVIEW (Reviews are subject to approval)
  He liked it.,
Posted By:

I had to get it for Pi Day for my little brother. He liked it.

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  Great to encourage the math wiz in the home,
Posted By:

small size worked well for an average 12 yr old lad.

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  Digits are clear and readable. Good shirt.,
Posted By:
1 people found this review helpful

My son has outgrown 3 of these. We keep buying it again in the next size up because he loves it. The digits are clear and readable.

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  3.14,
Posted By:
1 people found this review helpful

My son memorized the first 100 numbers of pi so we bought him this as a reward. He wears it with pride. :)

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  Who doesn't like Pi?,
Posted By:

It was a bit big for my 12 year old son, however we both loved it. He always wears a Pi shirt for Pi day and this is the second one I've had to buy! Who doesn't like Pi?

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  Four Stars,
Posted By:
1 people found this review helpful

I am enjoying it

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  Five Stars,
Posted By:
1 people found this review helpful

will order again great company to order from.....

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  As expected. Ordered large in case they shrink.,
Posted By:

As expected. Ordered large in case they shrink.

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  Five Stars,
Posted By:

Awesome!!!

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  Love it,
Posted By:
1 people found this review helpful

Great quality ... husband loves it

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  Fits well and good quality,
Posted By:
2 people found this review helpful

Nice shirt. Made my son happy.

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  Five Stars,
Posted By:
1 people found this review helpful

as advertised

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  More than expected!,
Posted By:

It exceeded expectations! I didn't enlarge the online image, so I simply expected a textured Pi.Instead, it included the entire formula!Of course, the fabric and fit were perfect.It was even delivered to my door on Sunday. Where but Amazon.com can you get all this?

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  Five Stars,
Posted By:

My son the 'geek' loves this shirt

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  Perfect for the geek in your life,
Posted By:

The idea of this is awesome! Although mine was slightly small fitting when it arrived. Perfect for the geek in your life!

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  Five Stars,
Posted By:

My daughter enjoyed wearing this t-shirt on Pi Day.

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  Pi are square,
Posted By:

It was a hit for pi day! A math teacher must have.

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  She enjoyed wearing it for pi day,
Posted By:

This was a gift for my daughter. She enjoyed wearing it for pi day.

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  Five Stars,
Posted By:

It was exactly what I ordered and expected. It was a big hit at the PI day celebration.

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  Five Stars,
Posted By:

A gift for my math loving daughter. She adores it.

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  One Happy Mathlete,
Posted By:

I bought this for my mathlete, and he LOVED it. It fits well, it looks good, no negatives at all. I wish it came in more colors, but I have no issues with what I ordered and what I received. I strongly recommend it.

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  Material seems good.,
Posted By:

I'm not wearing it until PI day. So I have nothing else to say about it. A very clever idea from somebody. Material seems good.

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  Pi Shirt,
Posted By:

I have wanted this design for a long time. I am very happy with this shirt!

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  Soft and comfy,
Posted By:

Ordered this for my husband for our anniversary (pi day), and he loves it. The fabric is very soft and the numbers have texture to them.

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  Five Stars,
Posted By:

This was a replacement for my previous pi shirt, that I wore so much it just wore out.

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  Great,
Posted By:

It's great quality. I've been using a lot for more than 6 months now and it's alright.

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  pi,
Posted By:

The shirt is of good design. It did show up larger than I expected (and I'm hoping it shrinks in the washing machine). Also, my fingers were crossed that it was a softer cotton.Regardless, I will wear it with a smile on my face.

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  and I know he will really like this tee,
Posted By:

My grandson is obsessed with 'Pi,' and I know he will really like this tee!

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  Who doesn't love Pi! This shirt is a fun way to ...,
Posted By:

Who doesn't love Pi! This shirt is a fun way to celebrate the 'Pi-day; (March 14th, 1:59pm / 3.14159.... ) =)

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  Perfect for the math lover,
Posted By:

If you love math, or pi, or even pie, this shirt is for you. Quality fabric, great for school or just wearing around.

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  great deal,
Posted By:

came in time for Pi day. I gave it as a present to a math student who is studying to be a teacher.

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  pi day shirt,
Posted By:

Love it!! ?? wore it to school on pi day for my junior high class. They loved it!! Awesome shirt!

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  Great,
Posted By:

I'm ready for Pi day now. I usually wait to long to get a Pi day shirt. Now I have all my Pi day gear.

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  Nice Shirt,
Posted By:

My fiance really liked this shirt. :)I wouldn't put it in the dryer though, it will shrink (as expected though)

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  Great shirt,
Posted By:

As a school teacher, I can use this shirt for all kinds of class-related jokes or simply as a conversation piece.

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  Great shirt.,
Posted By:

My son loved this shirt so much and my daughter was so jealous, I had to buy one for her too -- kids who are learning about pi in school love this great shirt. The quality of the cotton is good -- it's nice and thick and will probably stand up to very many washes. The color is black and so far has stayed nice and dark. The pi graphic also seems to be holding up well to multiple washes. It's hard to tell from the photo online, but the larger pi is made up of the digits of pi in very small print. Great gift idea.

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  Great for shy people,
Posted By:

I decided to get this shirt once i heard that an elementary school wasn't going to teach their students that Pi is 3.14 anymore because the students think decimals are too hard. I have had several teachers and students enjoy seeing this shirt and believes that it is not right to try and deny kids decimals and fractions.The Shirt is awesome, It has not faded, shrunk, or tore after several washes and it is still comfortable to wear.

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  Exactly What I Wanted,
Posted By:
1 people found this review helpful

This is a good quality shirt, and fits really well! I got it for Pi day, but wear it all the time now.

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  Perfect for Pi day.,
Posted By:
1 people found this review helpful

I love this shirt. Exaclty the rigth size and just in time for pi day. It looked great and it came quickly.

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  Geeky College Son Loves It,
Posted By:

1 bought this shirt and a few others for my Son's birthday. He loves them. Quality is good and they arrived pretty fast. I'm totally happy with this transaction

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  Heavy Tee with Pi Pattern,
Posted By:

The Tee arrived in just a few days and was exactly what I expected. The sizing was accurate and so far it has held up will after 5 washings.

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  Pi!,
Posted By:

This is a great shirt.I think Pi is ultra cool though.If you like math, you'll love the shirt.

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