Python to RPN converter
06-12-2021, 03:54 AM
Post: #53
 tcab Member Posts: 190 Joined: Dec 2017
RE: Python to RPN converter
A new release of the converter today:
• Fixed CLΣ access by providing Python function CLStat()
• Added statistical example to the help file.
Here is an example Python program which can be converted to RPN, which finds the sum of x^2 between numbers _from and _to using the built in feature of the HP statistics function Σ+ by accessing register 12.

Code:
def sumsigma(_from, _to):   CLStat()  # CLΣ   for i in range(_from, _to + 1):     StatPlus(i, i) # Σ+   x = RCL(12)  # recall summation register   print("sum of x^2 from", _from, "to", _to, "is", x)

Use: On Free42 type

1 Enter 10 XEQ SUMSIGMA

and you'll get the answer 385.

Its just a fun exercise - easily accomplished on the HP Prime with the one liner e.g. Σ(X^2,X,1,10)
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