Using the "long press" gesture will display a hint about any key. (Video: Displaying a hint) You can inspect the Key Details to see the formulas and functions for any key.

Label | Description |
---|---|

nrms | Calculates the standard normal cumulative distribution for x. |

nrm 1 | Calculates the cumulative distribution function for z=value, y=μ, x=σ, 1 tail. |

nPr | Calculates the number of ordered ways that x objects can be chosen from a set of y objects. |

x! | Calculates the factorial of x. |

Γ | Calculates the value the Gamma function for x. |

√ | Calculates the square root of x. |

y^x | Calculates y raised to power of x. |

1/x | Calculates the reciprocal of x. |

SWAP | Swaps the x and y registers. |

÷ | Divides y by x. |

ROLL | Rolls the stack down. |

× | Multiplies y times x. |

− | Subtracts x from y. |

% | Calculates the x percent of y. |

+ | Adds y to x. |

Label | Description |
---|---|

nrms⁻¹ | Calculates the inverse of the standard normal cumulative distribution for x. |

nrm⁻¹ | Calculates the inverse of the cumulative normal distribution function, for z=value, y=μ, x=σ. |

nCr | Calculates the number of ways that x objects can be chosen from a set of y objects. |

n!! | Calculates the double factorial of x. |

ln Γ | Calculates the natural logarithm of the gamma function for x. |

nrm | Calculates the probability density function of the normal distribution for z=value, y=μ, x=σ |

rand | Calculates a random number greater than or equal to 0 and less than 1. |

randBt | Calculates a random number greater than or equal to y and less than x. |

srand | Enters a seed for the random number generator using the integer value of x. Use x = 0 for a system generated seed. |

last x | Recalls the 'last x' value. |

clr m | Clears all of the user memory. |

clr s | Clears the stack registers (x, y, z, t). |

binmC | Calculates the binomial cumulative distribution for z=k, y=n, x=p. |

binmP | Calculates the binomial probability mass for z=k, y=n, x=p. |

erf y,x | Calculates the error function (lower (y), upper (x)). |

erf x | Calculates the error function (lower 0, upper (x)). |

erfc | Calculates the complementary error function of x. |

nrms2 | Calculates the 2 tail standard normal cumulative distribution. |

Δ% | Calculates the percent change from y to x. |