**HP-25 Emulator in Javascript:**

Before starting:

- This is an RPN calculator.
- Shift Keys:
- Function above key: Yellow [f] key
- Function below key: Blue [g] key

- Function above key: Yellow [f] key
- The original calculator displays only the "X" register, this emulator opens by showing the entire stack. Press [f][RCL (Show Stk)] to toggle Y-Z-T display on and off.
- Information: [i] key

Programming has not been implemented.

CL: PREFIX | PGM | REG | STK |

DEG | RAD | GRD |

x<y | ln | log | ->R |

x<0 | e^{x} |
10^{x} |
->P |

x>y |
sin | cos | tan |

x>0 |
sin^{-1} |
cos^{-1} |
tan^{-1} |

x#y | INT | X^{½} |
Y^{X} |

x#0 | FRAC | X² | ABS |

x=y | ->H.MS | LASTx | PAUSE |

x=0 | ->H | PI | NOP |

JCC

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