Visual Studioban meg lehet oldani, hogy két szöveg közti matek egyenletet kiszámolja?

A Visual Studio egy IDE, egy fejlesztőkörnyezet.

Milyen nyelven csinálnád?

Egyébként a keresett algoritmus a fordított lengyel formula:

[link]

#3: Az eval() függvénnyel csak óvatosan! Biztonsági kockázatot rejt - erre több helyen felhívják a figyelmet:

"Don't use eval needlessly!Edit

eval() is a dangerous function, which executes the code it's passed with the privileges of the caller. If you run eval() with a string that could be affected by a malicious party, you may end up running malicious code on the user's machine with the permissions of your webpage / extension. More importantly, third party code can see the scope in which eval() was invoked, which can lead to possible attacks in ways to which the similar Function is not susceptible."

Forrás: [link]

"Caution

The eval() language construct is very dangerous because it allows execution of arbitrary PHP code. Its use thus is discouraged. If you have carefully verified that there is no other option than to use this construct, pay special attention not to pass any user provided data into it without properly validating it beforehand."

Forrás: [link]