Sunday, January 19, 2020

TI 84 Plus CE: Nested Square Root Sums

TI 84 Plus CE:  Nested Square Root Sums

Introduction

The program NESTSQM calculates the sequence:

√(a + b)
√(a + b * √(a + b))
√(a + b * √(a + b * √(a + b))
√(a + b * √(a + b * √(a + b * √(a + b)))
...
√(a + b * √(a + b * ... * √(a + b)))

In other words, start with c = 1.
Then let c = √(a + b * c)
Repeat. 

The calculation is shown in steps of 5, for a total of 25 steps. 

TI-84 Plus CE Program: NESTSQSM

"2020-01-05 EWS"
Disp "√(A+B√(A+B√(A+B...","25 ITERATIONS","TI-84+ CE"
Prompt A,B
1→C
For(K,1,25)
√(A+B*C)→C
Disp C
If fPart(K/5)=0
Then
Disp " "
Disp toString(K-4)+" TO "+toString(K)
Pause 
ClrHome
End
End

Examples

Example 1:  a = 2, b = 3

2.236067977
2.95096661
3.294373966
3.447190436
3.513057259

3.541069299
3.552915408
3.557913184
3.5600196
3.560907019

3.561280817
3.561438256
3.561504565
3.561532493
3.561544255

3.561549208
3.561551295
3.561552173
3.561552544
3.561552699

3.561552765
3.561552793
3.561552804
3.561552809
3.561552811

Example 2:  a = 7, b = 4

3.31662479
4.501832867
5.000733093
5.196434583
5.271217917

5.299516173
5.310184996
5.314201726
5.315713207
5.316281861

5.316495786
5.316576262
5.316606535
5.316617923
5.316622207

5.316623819
5.316624425
5.316624653
5.316624739
5.316624771

5.316624783
5.316624788
5.316624789
5.31662479
5.31662479

Eddie

All original content copyright, © 2011-2020.  Edward Shore.   Unauthorized use and/or unauthorized distribution for commercial purposes without express and written permission from the author is strictly prohibited.  This blog entry may be distributed for noncommercial purposes, provided that full credit is given to the author.

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