C47 Finding Normal Distribution

[Thomas Klemm]

Assuming Φ to be: Standard normal cdf (lower).
Something like this?

Code:

01 XEQ 00
02 X<>Y
03 XEQ 00
04 -
05 RTN
06 LBL 00
07 RCL- "μ"
08 RCL÷ "s"
09 Φ
10 END

Example

5 STO "μ"
2 STO "s"

2 ENTER 6
R/S

0.624655