## 8 Mathematic Tattoos You Need to See

Ive been really enjoying Carl Zimmers Science Tattoo Emporium a blog dedicated to showing science-based tattoo art.

So here are some of my favorites posted on his site along with some others that Ive found: 2. Elliptic Partial Differential Equations

(Monge-Ampere & Infinity Laplacian) 3. Zermelo-Fraenkel with Choice Axioms of Set Theory 4. Y Combinator 5. All Values (from Zero to Infinity) are Less Than Love 6. Math Lip Tattoo 7. The Continuity Equation 8. Schroedinger’s Equation for the Wavefunction of a Particle ## Free Math Help

Hotmath.com is a website that provides free math help for a variety of homework problems from over 150 math textbooks. The site also offers free online math calculators and math workbooks and games. The site currently serves over a million students, and can provide you free help in algebra, geometry, trigonometry, precalculus and calculus. There are also free video lessons and practice tests to help you sharpen your math skills. This site looks very helpful, so check it out if you need some math help. Let us know what you think.

## Math Test Strategies Here are some tips to help you on your next math exam:

1. Estimate first.
Before you start, try to estimate what you think the answer might be. Even a rough estimate will help you double-check yourself after you arrive at your answer.

2. Translate problems into something you understand.
When you study equations and formulas, put them into words. The words can help you see a variety of applications. For example: c^2=a^2+b^2 can be translated as the square of the hypotenuse of a right triangle is equal to the squares of the other two sides.

3. Perform opposite operations.
If a problem involves multiplication, check your work by division; add, then subtract; factor, then multiply; find the square root, then the square; differentiate, then integrate.

4. Make a picture.
When you are stuck on a complex math or science problem, try to draw an elaborate colored picture or diagram. Sometimes a visual representation will clear your mind and help you figure out a way to solve it.

5. Write down memorized formulas on your test.
Memorize any formulas you think youll need for the exam. Write them all out on your text the moment it gets handed to you. Then you wont need to worry about forgetting them, which will help your anxiety level.

6. Check your work systematically.
Ask yourself if your answer makes sense. Are the units correct? Is your answer consistent with the parameters of the question? Check your formulas.

7. Write each number clearly.
Write your variables clearly so that you dont confuse them with other ones – especially variables that look similar like 4 and 9; 1 and 7; x an y

8. Answer the easy questions first.
Begin answering questions that you know right away. This will build your confidence and help you focus your time and energy on the tough ones later. This is a good way to manage your time as well.

9. Show all your work.
Dont skip any steps when solving math problems. This will help you proof your answers later, and help you avoid any logical mistakes.

10. Organize Your Calculations
Line up your numbers in each step. Use graph paper if it helps. .

11. Finish your test last.
Remain calm and relaxed during your test. Take extra time after youve finished your exam to check all your answers thoroughly. Plan on being the last person in class – and dont worry about others finishing before you.

Any others you would like to recommend?