<content> num2expr </content>

bde8ac6d-bed6-425b-bae7-7740dd15cae9 171 4 5 false false 0 decimal

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4 appVersion 0.99.7921.69

4 appVersion 0.99.7921.69 ≡

Converts an expression with binary operators to its functional representation E\032E\ N2E k 1 N2E cols range ans Clear(N2E 2 k el (a,b)) concat : ans str2num 12 mat for T\032E\ b\032E\ #N2E# equrep(T\032E\,a¤b, b\032E\) concat str2num : X\032E\ a\032E\ b\032E\ #N2E# t\0324\ X\032E\ num2str {(strrep}) strrep : t\0324\ t\0324\ (#N2E#(strrep a\032E\ ¤ strrep : N\0324\ 1 EquRepN range t\0324\ num2str t\0324\ t\0324\ num2str b\032E\ #N2E# : num2str ≡ break continue if 11 line for t\0324\ num2str #N2E#((strrep str2num 41 line : ans\0324\ E\032E\ a b ¤ a b #Xor# equrep : ans\0324\ ans\0324\ a b & a b #And# equrep : ans\0324\ ans\0324\ a b | a b #Or# equrep : ans\0324\ ans\0324\ a b > b a < equrep : ans\0324\ ans\0324\ a b ≥ b a ≤ equrep : ans\0324\ ans\0324\ a b ≡ a b #Equals# equrep : ans\0324\ ans\0324\ a b ≠ a b #NotEquals# equrep : ans\0324\ ans\0324\ a b < a b #LessThan# equrep : ans\0324\ ans\0324\ a b ≤ a b #LessOrEquals# equrep : ans\0324\ ans\0324\ num2str - +#neg#* strrep str2num : k\0324\ 13 range ans\0324\ ans\0324\ num2str N2E 1 k\0324\ el # N2E 2 k\0324\ el #(a,b) concat #N2E# : for ans\0324\ ans\0324\ / #Times#(a,#Inv#(b) #N2E# : k\0324\ 1 N2E cols range # N2E 2 k\0324\ el #(a,b): N2E 2 k\0324\ el (a,b) concat str2num for b #Inv# b #neg# Pow : #neg# 1 - : b\032E\ #N2E# b\032E\ : 13 mat ans\0324\ ans\0324\ num2str num2str : ans\0324\ num2str #N2E# strrep num2str str2num 191 line :

This avoid the bug:

a b & (c | (d ≡ num2str str2num a b & (c d ≡ (|

This is, can't use num2str with booleans

a b & (c | (d ≡ num2str a&b|c≡d

Matrix of binary operators N2E + *^& | ≡ ≠ < ≤ ¤ Plus Times Pow And Or Equals NotEquals LessThan LessOrEquals Xor 210 mat :

Replacing deep EquRepN 20 :

u v w * / a b * a b times equrep u v w * /

u v w * / N2E u v w Times 1 - Pow Times

<content> num2expr examples </content>

Assign binary operators

k 1 N2E cols range ans N2E 2 k el (a,b):(a N2E 1 k el b) concat str2num : for

E1 1 x 7 y * + / N2E : 1 x 7 y Times Plus 1 - Pow Times

E1 1 x 7 y * + /

E2 a b & (c d ¬ (& (| x cos + A B & (C D ¬ (& (| (E ≡ 21 mat N2E : a b And c d ¬ And Or x cos Plus A B And C D ¬ And Or E Equals 21 mat

E2 a b & (c d ¬ & (| x cos + A B & (C D ¬ & (| (E ≡ 21 mat

E3 3 - a - cos + b u v w + (-^+ A X * B Y * + / N2E : 1 b v w Plus 1 - u Times Plus Pow 31 - Times a cos Plus Times Plus b v w Plus 1 - u Times Plus Pow A X Times B Y Times Plus Times 1 - Pow Times

E3 1 b v w + u -^3 - a cos + (* + b v w + u -^A X * B Y * + (* /

Unassign binary operators

k 1 N2E cols range ans Clear(N2E 2 k el (a,b)) concat : ans str2num 12 mat for

E1 1 x 7 y Times Plus 1 - Pow Times

E2 a b And c d ¬ And Or x cos Plus A B And C D ¬ And Or E Equals 21 mat

E3 1 b v w Plus 1 - u Times Plus Pow 31 - Times a cos Plus Times Plus b v w Plus 1 - u Times Plus Pow A X Times B Y Times Plus Times 1 - Pow Times

Alvaro