While some exercises have a tool that lets you click on a symbol, sometimes there are a limited number of symbols available in the entry form, sometimes there is no form and the instructions on typing mathematics are not currently available.

See here for how to **enter** some common symbols:

**Multiplication**: Type * or shift-8 on an American keyboard. Example: 3 times 4 is 3*4.

**Division**: Use **/** for division. For example, 3 fourths are entered as *3/4*. If you have any operations in the numerator or denominator, surround this with parentheses. For example, 12 divided by 5n would be entered as *12/(5n)* and the quantity of n plus 3 all divided by 6 would be entered as *(n+3)/6.*

**Square root**: sqrt, For example, to enter the square root of 3, type " sqrt(3) ".

**Cube roots (and other non-square roots): **see fractional exponents.

**Pie**: Sorry, there is no pie button. Although, I'd love one that creates strawberry rhubarb pie. (see pi)

**Pi**: (This is for the number approximately equal to 22/7 or 3.14) Type " pi ".

**Theta: **(This is a Greek letter that looks like a 0 with a horizontal line in the center) Type " theta ".

**Powers or exponents**: use the ^ symbol, also known as a caret. For example, to enter 4 to the 5th power, type " 4^5 ".

**Fractional exponents:** use the ^ symbol and put the fraction in parentheses. For example, to enter the cube root of x or x to the 1/3 power type " x^(1/3) "

**Greater than or equal to**: Type " >= "

**Less than or equal to**: Type " <= "

**Logarithms**: For base 10 logarithms, enter " log(x) " where x is the number. For natural logarithms enter " ln(x) ".

**Logarithms with bases other than 10:** A popup box should appear when the cursor is in the answer box. If this does not happen, you should be able to enter your answer as " log_b(n) ", where b is the base and n is the number.

*Last updated September 22, 2017*

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