# Calculate something written in a string

**URL:** <https://discourse.processing.org/t/calculate-something-written-in-a-string/24977>\
**Category:** Coding Questions\
**Created:** [October 28, 2020, 4:04pm UTC](https://discourse.processing.org/t/calculate-something-written-in-a-string/24977 "2020-10-28T16:04:35Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![NumericPrime](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/numericprime/32/16318_2.png) [@NumericPrime](https://discourse.processing.org/u/NumericPrime)\
**Post date:** [October 28, 2020, 4:04pm UTC](https://discourse.processing.org/t/calculate-something-written-in-a-string/24977/1 "2020-10-28T16:04:35Z")

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I’m currently writing a programm to solve equations.  
I have the following Problem:  
My equation will be in the form of a string.  
What I need is some kind of method to do something like.

```auto
String calculation="5×(4+1*3)";
println(calculate(calculation));

```

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**Author:** ![GoToLoop](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/gotoloop/32/86_2.png) [@GoToLoop](https://discourse.processing.org/u/GoToLoop)\
**Post date:** [October 28, 2020, 4:15pm UTC](https://discourse.processing.org/t/calculate-something-written-in-a-string/24977/2 "2020-10-28T16:15:08Z")

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- [Forum.Processing.org/two/discussion/7147/some-simple-pulse-equations-using-trig-#Item\_8](http://Forum.Processing.org/two/discussion/7147/some-simple-pulse-equations-using-trig-#Item_8)

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<div class="post-metadata">

**Author:** ![NumericPrime](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/numericprime/32/16318_2.png) [@NumericPrime](https://discourse.processing.org/u/NumericPrime)\
**Post date:** [October 28, 2020, 4:29pm UTC](https://discourse.processing.org/t/calculate-something-written-in-a-string/24977/3 "2020-10-28T16:29:02Z")

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That worked for me! Thanks!