| cancel.fraction | cancel a fraction to the smallest numbers |
| decimal2fraction | convert a decimal-number into fraction |
| gcd | Greatest common divisor of two numbers |
| is.decimal | checks if a number is decimal or integer and returns TRUE for decimal |
| is.even | Checks whether numbers are even. |
| is.negative | Check whether numbers are negative. |
| is.odd | Checks whether numbers are odd. |
| is.positive | Check whether numbers are positive. |
| is.prim | Check whether a vector contains prime numbers |
| is.real.positive | Check whether numbers are non-negative. |
| is.whole | checks if a number is decimal or integer and returns FALSE for decimal |
| prime.factor | This function calculates the prime-factors of a number |
| primes | generate prime-numbers in a range from START to END |
| primlist | A vector containing primes between 1 and 99,999,999 |
| scm | calculating the smallest common multiple of two numbers |