# Math function in tsvb

**URL:** <https://discuss.elastic.co/t/math-function-in-tsvb/258320>\
**Category:** Kibana\
**Created:** [December 10, 2020, 6:46pm UTC](https://discuss.elastic.co/t/math-function-in-tsvb/258320 "2020-12-10T18:46:30Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![elasticforme](https://avatars.discourse-cdn.com/v4/letter/e/f05b48/32.png) [@elasticforme](https://discuss.elastic.co/u/elasticforme)\
**Post date:** [December 10, 2020, 6:46pm UTC](https://discuss.elastic.co/t/math-function-in-tsvb/258320/1 "2020-12-10T18:46:30Z")

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I am trying to do simple match function on TSVB but it shows no data. If I remove math I can see the value.  
What am I doing wrong. I just want to minus some fixed number from it.  
totalfreesize is in bytes.

 ![image](https://us1.discourse-cdn.com/elastic/original/3X/5/b/5bf6ccf07a9d9735efefaa664dc301d29e4fe3ef.png)

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<div class="post-metadata">

**Author:** ![elasticforme](https://avatars.discourse-cdn.com/v4/letter/e/f05b48/32.png) [@elasticforme](https://discuss.elastic.co/u/elasticforme)\
**Post date:** [December 10, 2020, 8:42pm UTC](https://discuss.elastic.co/t/math-function-in-tsvb/258320/2 "2020-12-10T20:42:07Z")

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Fixed. just putting out for someone who may be doing same

I had to use L at the end of that large number i.e  
params.tf-7000000000L and it works.

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [January 7, 2021, 8:42pm UTC](https://discuss.elastic.co/t/math-function-in-tsvb/258320/3 "2021-01-07T20:42:12Z")

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