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| author | Louis Pilfold <louis@lpil.uk> | 2023-12-06 17:57:04 +0000 |
|---|---|---|
| committer | Louis Pilfold <louis@lpil.uk> | 2023-12-06 17:57:04 +0000 |
| commit | 58efb89355676356ee1006bbd2c8b0ee44108358 (patch) | |
| tree | f07f88c52150e738ddf597d3d4daab9444c01a9f /lessons/src/lesson005_floats | |
| parent | e66db486ffa57a1ce68a85ab6cb7bfbb05e260b8 (diff) | |
| download | tour-58efb89355676356ee1006bbd2c8b0ee44108358.tar.gz tour-58efb89355676356ee1006bbd2c8b0ee44108358.zip | |
More try lessons
Diffstat (limited to 'lessons/src/lesson005_floats')
| -rw-r--r-- | lessons/src/lesson005_floats/code.gleam | 20 | ||||
| -rw-r--r-- | lessons/src/lesson005_floats/text.html | 19 |
2 files changed, 39 insertions, 0 deletions
diff --git a/lessons/src/lesson005_floats/code.gleam b/lessons/src/lesson005_floats/code.gleam new file mode 100644 index 0000000..f42c608 --- /dev/null +++ b/lessons/src/lesson005_floats/code.gleam @@ -0,0 +1,20 @@ +import gleam/io +import gleam/float + +pub fn main() { + // Float arithmetic + io.debug(1.0 +. 1.5) + io.debug(5.0 -. 1.5) + io.debug(5.0 /. 2.5) + io.debug(3.0 *. 3.5) + + // Float comparisons + io.debug(2.2 >. 1.3) + io.debug(2.2 <. 1.3) + io.debug(2.2 >=. 1.3) + io.debug(2.2 <=. 1.3) + + // Standard library float functions + io.debug(float.max(2.0, 9.5)) + io.debug(float.ceiling(5.4)) +} diff --git a/lessons/src/lesson005_floats/text.html b/lessons/src/lesson005_floats/text.html new file mode 100644 index 0000000..497bb13 --- /dev/null +++ b/lessons/src/lesson005_floats/text.html @@ -0,0 +1,19 @@ +<p> + Gleam's <code>Float</code> type represents numbers that are not integers. +</p> +<p> + Unlike many languages Gleam does not have a `NaN` or `Infinity` float value. +</p> +<p> + Gleam's numerical operators are not overloaded, so there are dedictated + operators for working with floats. +</p> +<p> + Floats are represented as 64 bit floating point numbers on both Erlang and + JavaScript runtimes. +</p> +<p> + The <a href="https://hexdocs.pm/gleam_stdlib/gleam/float.html"><code>gleam/float</code></a> + standard library module contains functions for working with floats. +</p> + |