| Symbols | Words |
|---|---|
| middle dot comma times | multiplication sign, times |
| plus minus | plus or minus positive or negative |
| = | equals |
| questioned equal to | equals? |
| almost equal to | is approximately equal to |
| not equal to | is not equal to |
| less than | is less than |
| greater than | is greater than |
| less than or equal to | is less than or equal to |
| greater than or equal to | is greater than or equal to |
| approximately equal to | is congruent to |
| tilde | is similar to |
| ( ) | parentheses for grouping |
| [ ] | brackets for grouping |
| { } | braces for a set |
| % | percent |
| |a| | absolute value of a |
| negative eh | opposite of a |
| eh colon b semicolon , eh over b | ratio of a to b |
| 1 over eh , comma eh , negative to the first , comma eh not equal to 0 | reciprocal of a |
| eh to the n | nth power of a |
| eh super negative n end super | fraction 1 , over eh to the n end fraction , comma . eh not equal to 0 |
| square root of eh | nonnegative square root of a |
| the th , root of eh , | nth root of a (nonnegatice if n even) |
| ° as in a° | degree(s) |
|
composition , asin , f composition g
π |
composition of functions pi, an irrational number, approximately equal to 3.14 |
| e | an irrational number approximately equal to 2.72 |
| i | the imaginary number square root of negative 1 end root |
| eh plus b i comma b not equal to 0 | a complex number |
| infinity | infinity |
| cap sigma | sigma, summation |
| sigma | sigma, standard deviation |
| sigma squared | variance |
| modified eh b with left right arrow above | line through points A and B |
| modified eh b with right harpoon up above | vector AB |
| eh b bar | segment with endpoints A and B |
| AB | length of eh b bar , semicolon distance between points A and B |
| angle A | angle A |
| m angle eh | measure of angle A |
| cap delta | triangle ABC |
| (x, y) | ordered pair |
| x sub 1 , comma , x sub 2 , comma … | specific values of the variable x |
| y sub 1 , comma , y sub 2 , comma … | specific values of the variable y |
| x bar | mean of data values x sub i |
| f(x) | f of x; the function value at x |
| f super negative 1 end super | function inverse |
| log | logarithm |
| ln | natural logarithm |
| . matrix with 2 rows and 2 columns , row1 column 1 , eh , column 2 b , row2 column 1 , c , column 2 d , end matrix | matrix |
| eh sub m n end sub | element in mth row, nth column of matrix A |
| eh super negative 1 end super | inverse of matrix A |
| . determinant with 2 rows and 2 columns , row1 column 1 , eh , column 2 b , row2 column 1 , c , column 2 d , end determinant | determinant of a matrix |
| det A | determinant of matrix A |
| n! | n factorial |
| n to the c , r | combinations of n things chosen r at a time |
| n to the p , r | permutations of n things arranged r at a time |
| P(event) | probability of the event |
| P(A|B) | probability of event A, given event B |
| sin A | sine of angle eh |
| cos A | cosine of angle eh |
| tan A | tangent of angle eh |
| csc A | cosecant of angle eh |
| sec A | secant of angle eh |
| cot A | cotangent of angle eh |
| ˆ | raised to a power (in a spreadsheet formula) |
| * | multiply (in a spreadsheet formula) |
| / | divide (in a spreadsheet formula) |
| … | and so on |
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