# Continuous funtion plotted as discontinuous function

**URL:** <https://cl.desmos.com/t/continuous-funtion-plotted-as-discontinuous-function/3983>\
**Category:** Bug Reports\
**Created:** [January 21, 2022, 6:58pm UTC](https://cl.desmos.com/t/continuous-funtion-plotted-as-discontinuous-function/3983 "2022-01-21T18:58:15Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Rahul\_Verma](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/rahul_verma/32/3298_2.png) [@Rahul\_Verma](https://cl.desmos.com/u/Rahul_Verma)\
**Post date:** [January 21, 2022, 6:58pm UTC](https://cl.desmos.com/t/continuous-funtion-plotted-as-discontinuous-function/3983/1 "2022-01-21T18:58:15Z")

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Desmos is plotting (sinx(1+x)-sin(x)) as a step function(discontinuous function) when zoomed to precision of 10^(-16)

But (sin(1+x) - sin(1)) is continuous function over entire real line.

And here is screenshot of plot :-

 ![Screenshot 2022-01-22 002530](https://canada1.discourse-cdn.com/flex031/uploads/desmos/original/2X/c/c1bc5ea0b3adf7954ba0d833cb0893f7b41c75f6.png)

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<div class="post-metadata">

**Author:** ![JayChow](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/jaychow/32/1674_2.png) [@JayChow](https://cl.desmos.com/u/JayChow)\
**Post date:** [January 21, 2022, 7:22pm UTC](https://cl.desmos.com/t/continuous-funtion-plotted-as-discontinuous-function/3983/2 "2022-01-21T19:22:04Z")

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Your browser uses a number type that can only take on a finite number of values. This means that zooming in enough reveals jumps between discrete values. What you’re seeing are the most precise values that exist in the calculator (there are no numbers between those numbers!) Here’s another [example](https://twitter.com/RonAvitzur/status/1116922304930304000).

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<div class="post-metadata">

**Author:** ![JayChow](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/jaychow/32/1674_2.png) [@JayChow](https://cl.desmos.com/u/JayChow)\
**Post date:** [January 21, 2022, 7:22pm UTC](https://cl.desmos.com/t/continuous-funtion-plotted-as-discontinuous-function/3983/3 "2022-01-21T19:22:56Z")

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More on this [here](https://engineering.desmos.com/articles/intuitive-calculator-arithmetic/)