String manipulation of type String substitution in mathematical expression

Posted by Peterstone on Super User See other posts from Super User or by Peterstone
Published on 2010-11-22T19:48:44Z Indexed on 2012/06/19 21:19 UTC
Read the original article Hit count: 295

Filed under:

math

|

string-manipulation

Imagine something like

exp(49/200)+(x-49/200)

I want to pass as argument of the function "roundn" whatever operation that is not a addtion or a subtraction So my expresion became

roundn(exp(roundn(49/200,n)),n)+(x - roundn(49/200,n)

Well the expression I want to manipulate is this:

exp(49/200)+exp(49/200)*(x-49/200)+1/2*exp(49/200)*(x-49/200)^2+1/6*exp(49/200)*(x-       49/200)^3+1/24*exp(49/200)*(x-49/200)^4+1/120*exp(49/200)*(x-49/200)^5+1/720*exp(49/200)*(x-49/200)^6+1/5040*exp(49/200)*(x-49/200)^7+1/40320*exp(49/200)*(x-49/200)^8+1/362880*exp(49/200)*(x-49/200)^9+1/3628800*exp(49/200)*(x-49/200)^10+1/39916800*exp(49/200)*(x-49/200)^11

I´m looking for a method (That include whatever program) not based in lenguage programming, as much batch or somithing like that... Thank you!

© Super User or respective owner

Related posts about math

how to make a function recursive

as seen on Stack Overflow - Search for 'Stack Overflow'
i have this huge function and i am wondering how to make it recursive. i have the base case which should never come true, so it should always go to else and keep calling itself with the variable t increases. any help would be great thanks def draw(x, y, t, planets): if 'Satellites' in planets["Moon"]: … >>> More
Sunrise / set calculations

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm trying to calculate the sunset / rise times using python based on the link provided below. My results done through excel and python do not match the real values. Any ideas on what I could be doing wrong? My Excel sheet can be found under .. http://transpotools.com/sun_time.xls # Created on… >>> More
Android-Java: Constructing a triangle based on Coordinates on a map and your bearing

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi Guys, I'm constructing a geolocation based application and I'm trying to figure out a way to make my application realise when a user is facing the direction of the given location (a particular long / lat co-ord). I've got the math figured, I just have the triangle to construct. //UPDATE So… >>> More
Math.max and Math.min outputting highest and lowest values allowed

as seen on Stack Overflow - Search for 'Stack Overflow'
so I'm trying to make a program that will output the sum, average, and smallest and largest values. I have everything basically figured out except the smallest and largest values are outputting 2147483647 and -2147483647, which I believe are the absolute smallest and largest values that Java will… >>> More
Is Programming == Math?

as seen on Stack Overflow - Search for 'Stack Overflow'
I've heard many times that all programming is really a subset of math. Some suggest that OO, at its roots, is mathematically based. I don't get the connection. Aside from some obvious examples: using induction to prove a recursive algorithm formal correctness proofs functional languages lambda calculus asymptotic… >>> More

Related posts about string-manipulation

String manipulation in C#

as seen on Stack Overflow - Search for 'Stack Overflow'
I have the following text, I need to extract the exception name and the continuing sentence from the file, but the file has continuous sentences without a space. ??????>????????????????????????????????????????????????????????????????????????????????????????????????????????????????? ??????????… >>> More
Regarding String manipulation

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a String str which can have list of values like below. I want the first letter in the string to be uppercase and if underscore appears in the string then i need to remove it and need to make the letter after it as upper case. The rest all letter i want it to be lower case. "" "abc" "abc_def" "Abc_def_Ghi12_abd" "abc__de" "_" Output: "" "Abc" "AbcDef" "AbcDefGhi12Abd" "AbcDe" "… >>> More
String manipulation in C# ( Brainstroming ;-) )

as seen on Stack Overflow - Search for 'Stack Overflow'
I have the following text , i need to extract the exception name and the continuing sentence from the file... but the file has continues sentence without a space. ?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????… >>> More
php string-manipulation (clear the "_" and the timestamp)

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi! I cant find the way how to strip the useless section of my string (read from SQL) I've tried the strreplace and truncate but those was not good at all. I've got a string variable called $stuff if $stuff = 145_timestamp i want to clear the _ and the chars after it. so i want to $stuff be 145… >>> More
c# string manipulation

as seen on Stack Overflow - Search for 'Stack Overflow'
i have string of 9 letters. string myString = "123987898"; I want to retrieve frist 3 letter "123" then 2 more leters "98" and then 4 more letters "7898". Which c# string function support this functionality. >>> More