# Convert a tuple of matrix Float64 data to Float32

**URL:** <https://discourse.julialang.org/t/convert-a-tuple-of-matrix-float64-data-to-float32/112005>\
**Category:** Data\
**Tags:** convert, float\
**Created:** [March 23, 2024, 4:19am UTC](https://discourse.julialang.org/t/convert-a-tuple-of-matrix-float64-data-to-float32/112005 "2024-03-23T04:19:07Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![raman\_kumar](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/raman_kumar/32/26782_2.png) [@raman\_kumar](https://discourse.julialang.org/u/raman_kumar)\
**Post date:** [March 23, 2024, 4:19am UTC](https://discourse.julialang.org/t/convert-a-tuple-of-matrix-float64-data-to-float32/112005/1 "2024-03-23T04:19:07Z")

</div>

I have a tuple of matrices data of type `Float64` .

 ![image](https://global.discourse-cdn.com/julialang/original/3X/6/2/623298a8bf69859c293f504ef631ff3eaa051890.png)  
But when i want to convert it to `Float32` it gives error  
 ![image](https://global.discourse-cdn.com/julialang/original/3X/8/7/8702babb59ae1112cd09a01930ebac09d0f91526.png)

How to convert a tuple of matrix Float64 data to Float32 ?

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<div class="post-metadata">

**Author:** ![findmyway](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/findmyway/32/4946_2.png) [@findmyway](https://discourse.julialang.org/u/findmyway)\
**Post date:** [March 23, 2024, 4:34am UTC](https://discourse.julialang.org/t/convert-a-tuple-of-matrix-float64-data-to-float32/112005/2 "2024-03-23T04:34:10Z")

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Actually, you are broadcasting over a tuple.

```julia
x, z = map(x -> Float32.(x), spherical_to_cartesian(r, theta))

```

Or more simply:

```julia
x, z = Matrix{Float32}.(spherical_to_cartesian(r, theta))

```