Difference between revisions of "TI-BASIC:Useful Routines"
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Michael2 3B (talk | contribs) m (Updated code for "Find and Replace Text in String") |
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<code> | <code> | ||
:length(Str2→J | :length(Str2→J | ||
− | :While inString(Str1,Str2 | + | :1→I |
− | :inString(Str1, | + | :While inString(Str1,Str2,I |
+ | :inString(Str1,Str2,I→I | ||
:Str3 | :Str3 | ||
:If ln(I | :If ln(I | ||
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:Ans+sub(Str1,I+J,1-I-J+length(Str1 | :Ans+sub(Str1,I+J,1-I-J+length(Str1 | ||
:Ans→Str1 | :Ans→Str1 | ||
+ | :I+length(Str3→I | ||
:End | :End | ||
</code> | </code> | ||
[[Category: TI-BASIC]] | [[Category: TI-BASIC]] |
Latest revision as of 07:22, 11 February 2023
Contents
- 1 Filled Circle
- 2 Fraction Parts
- 3 Graph Mode
- 4 Counting List Matches
- 5 Mode of List
- 6 Most Efficient getKey
- 7 Text to List
- 8 List To Text
- 9 Shuffle Elements of List
- 10 Formatted Text on a Graph Screen
- 11 Modulo Division
- 12 Matrix to List
- 13 List to Matrix
- 14 Convert A to a String [Optimized]
- 15 Pop First List Element
- 16 Rotate a 3x3 Matrix 90°
- 17 Find List Element Index
- 18 Convert Base 10 to Any Base (2 to 16)
- 19 Change Case of a String
- 20 Number to Roman Numeral
- 21 Find Unique Elements in Two Lists
- 22 Detect Screen Resolution
- 23 Find and Replace Text in String
Filled Circle
- Author: Calc84Maniac
- Inputs:
- X = x-coordinate of center
- Y = y-coordinate of center
- R = radius
:For(F,0,R,[deltax]
- sqrt(R^2-F^2
- Line(X+F,Y+Ans,X+F,Y-Ans
- Line(X-F,Y+Ans,X-F,Y-Ans
End
Fraction Parts
- Author: Calc84Maniac
- Input:
- Ans=a number
- Output:
- Ans={numerator,denominator}
:{Ans,1,fpart(abs(Ans
- While e-9<Ans(3
- {Ans(1),Ans(3),Ans(3)fpart(Ans(2)/Ans(3
- End
round({Ans(1),1}/Ans(2),0
Graph Mode
- Author: Calc84Maniac
- Inputs: none
- Output: Ans=
- 0:FUNC
- 1:PAR
- 2:POL
- 3:SEQ
- Destroys: GDBn
:StoreGDB n
- 1->Tmin
- 1->[thetamin]
- 2->nMin
- ZStandard
- not(Tmin)+2not([thetamin])+3(nMin=1
- RecallGDB n
Delvar GDBn
Counting List Matches
- Author: Calc84Maniac
Returns how many times A appears in LIST
:sum(LIST=A
Returns how many corresponding elements of LIST1 and LIST2 are equal Note: dim(LIST1) must equal dim(LIST2)
:sum(LIST1=LIST2
Mode of List
- Author: Calc84Maniac
- Inputs: LIST
- Outputs:
- D = mode(LIST
- E = 1 if no unique mode, otherwise E=0
:0->B
- For(A,1,dim(LIST
- sum(LIST=LIST(A->C
- If C=B and D/=LIST(A
- 1->E
- If C>B
- LIST(A->D
- Delvar EC->B
- End
End
Most Efficient getKey
- Author: jonbush
- Input: none
- Output: the key pressed in K (or you can change to another variable)
:Repeat Ans
- getkey->K
End
Text to List
- Author: Lafferjm
- Input: Str1, Str2 as shown
- Output: L1
Takes text entered from input and changes it into list
:DelVar L1
- "ABCDEFGHIJKLMNOPQRSTUVWXYZ? .→Str1
- ClrHome
- Input "NAME:",Str2
- For(A,1,length(Str2
- inString(Str1,sub(Str2,A,1→L1(A
End
List To Text
- Author: lafferjm
- Input: None
- Output: List changed into text
Takes numbers in list from List to text and changes it into a word on the screen
:ClrHome
- "ABCDEFGHIJKLMNOPQRSTUVWXYZ? .→Str1
- For(A,1,dim(L1
- Output(1,A,sub(Str1,L1(A),1
End
Shuffle Elements of List
Shuffles LIST1. Note: If you know what dim(LIST1) will be, replace it with a number.
- Author: Calc84Maniac
- Destroys: LIST2
:rand(dim(LIST1->LIST2
SortA(LIST2,LIST1
Formatted Text on a Graph Screen
Clears the graph screen
- Authors: B-flat, KermMartian, and Calc84Maniac
- Input: Str1
:ClrDraw
- length(Str1->A
- For(J,1,1+iPart(A/23
- For(I,1,23
- If 23J-24+I<A
- Text(7J-7,4I-4,sub(Str1,23J-23+I,1
- End
End
Modulo Division
The Round( is in there in case of an infinitely repeating decimal (like 1/3).
- Authors: The Tari, Something1990, and Calc84Maniac
- Inputs:
- A = Dividend
- B = Divisor
:round(BfPart(A/B),0
Matrix to List
Converts any size matrix to a list
- Author: lafferjm
- Input:
- Matrix A
- Output:
- Lsave
:ClrHome
- 1→dim(L2
- dim([A]→L1
- L1(1→A
- L1(2→B
- For(C,1,A
- For(D,1,B
- [A](C,D→L2(dim(L2)+1
- End
- End
- For(A,2,dim(L2)
- L2(A)→∟SAVE(A-1
- End
DelVar L1DelVar L2DelVar [A]DelVar BDelVar CDelVar ADelVar D
List to Matrix
Takes any size list and stores it into a matrix
- Author: Lafferjm
- Inputs: Lsave
- Output: Matrix [A]
:ClrHome
- Input "ROWS:",F
- ClrHome
- dim(∟SAVE)/F→G
- {F,G→dim([A]
- 1→A
- 1→B
- G→C
- 0→D
- Repeat A=F+1
- For(E,1,G
- D+1→D
- ∟SAVE(D→[A](A,E
- End
- A+1→A
- C+1→B
- C+G→C
- End
DelVar ADelVar BDelVar CDelVar DDelVar EDelVar FDelVar G
Convert A to a String [Optimized]
- Author: Weregoose
:{A,A->L2
- {0,1->L1
- LinReg(a+bx) Y1
- Equ>String(Y1,Str1
sub(Str1,1,length(Str1)-3->Str1
Pop First List Element
Input and output variables can be changed to whatever.
- Author: Calc84Maniac
- Input: Ans
- Output: Ans
:ΔList(cumSum(Ans
Rotate a 3x3 Matrix 90°
- Author: HaveACalc
- Input: Ans
- Output: Ans
:rowSwap(Ans<superscript T transpose>,1,3
Find List Element Index
- Author: Ed H
- Inputs:
- A = a number
- Output: Ans=the position of the last occurrence of A in L1
:max(seq(X(A=L1(X)),X,1,dim(L1
=== Find List Element Index (Within Bounds)
- Inputs:
- A = A number
- B = Where it begins looking
- C = Where it ends looking
- Output: Ans=The position of the last occurrence of A in the portion of L1 starting from element B and ending with element C
:max(seq(X(A=L1(X)),X,B,C
Convert Base 10 to Any Base (2 to 16)
- Author: RthProg
- Inputs:
- A = Number to convert
- B = Base to convert to
- Outputs: Str0
:"_
- For(I,1,1+ln(A)/ln(B
- Ans+sub("0123456789ABCDEF",1+int(BfPart(AB^-I)),1
End
- Author: PT_
- Inputs:
- N = Number to convert
- A = Base to convert to
- Outputs: List with 8 decimals in base-A
:AfPart(1/Aint(NA^seq(X,X,~7,0
or
:remainder(int(NA^seq(X,X,~7,0)),A
Change Case of a String
- Authors: RthProg and Ed H
- Inputs:
- A = (1) Change to uppercase
- Str1 = String to convert
- Outputs:
- Str1 = Converted string
:not(A)-->A
- length(Str1)->B
- "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"->Str2
- For(N,1,B
- inString(sub(Str2,26A + 1, 26),sub(Str1,N,1)
- Str1 + sub(sub(Str1,N,1) +sub(sub(Str2,26,26)+sub(Str2,1,26),26A+1,26),Ans+1,1)-->Str1
- End
sub(Str1,B+1,B)-->Str1
Number to Roman Numeral
- Author: Ed H
- Inputs:
- N = Number to convert
- Outputs:
- Ans & Str0 = Converted number
:" →Str0
- For(X,0,log(N
- 10fPart(.1N→Z
- While Z
- sum({4.1,4.1,9.2}(Z={4,5,9→T
- sub("IVXLCDMvxlcdmni",2X+10fPart(T)+1,1)+Str0→Str0
- abs(Z-1-int(T→Z
- End
- int(.1N→N
- End
Str0
Find Unique Elements in Two Lists
- Authors: rthprog/lirtosiast
- Input: L1 and L2
- Output: L3 (All elements that are in L1 but not L2, and elements that are in L2 but not L1.)
- Conditions: "0" is not a unique element, and no element is repeated within an individual list
:augment(L1,L2
- Ansseq(1=sum(Ans=Ans(X)),X,1,dim(Ans->L3
- SortD(L3
sum(L3≠0→dim(L3
Detect Screen Resolution
- Author: Weregoose
- Inputs: none
- Output: Ans=
- 1: Monochrome
- 0: Color
:Xmin+E2ΔX>Xmax
Find and Replace Text in String
- Author: Michael2_3B, optimized by Runer112
- Inputs: Str1 (main string), Str2 (search string), Str3 (replacement string)
- Outputs: Str1 (modified main string)
- length(Str2→J
- 1→I
- While inString(Str1,Str2,I
- inString(Str1,Str2,I→I
- Str3
- If ln(I
- sub(Str1,1,I-1)+Ans
- If I+J≤length(Str1
- Ans+sub(Str1,I+J,1-I-J+length(Str1
- Ans→Str1
- I+length(Str3→I
- End