on the RPN mentioning sharp pc-1211, v.albillo, el-506w and recurring topics

[Frido Bohn]

(12-05-2017 11:22 PM)pier4r Wrote:  \[ \frac{57^{6}}{22 \cdot 24} - \sqrt{ 53+81 } - \frac{ 25 - 7 \cdot \sqrt{92 \cdot 82} }{4^{2} \cdot 13 \cdot 81 } \]

I need 9 strokes for this (RPN @ HP25).

Quote: Counting numbers as 1, operations as 1, change of sign as 1.

Rationale:
The first part of the "formula"
\[ \frac{57^{6}}{22 \cdot 24} \]
renders a number of 8-digit magnitude. The rest of the expression can be neglected (at least from a practical, i.e. real-world point of view).