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||||||
|
checksum = "d71d857dc86794ca4c280d616f7da00d2dbfd8cd788846559a6813e6aa4b54ee"
|
||||||
|
dependencies = [
|
||||||
|
"same-file",
|
||||||
|
"winapi-util",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "wasi"
|
||||||
|
version = "0.11.0+wasi-snapshot-preview1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "wasm-bindgen"
|
||||||
|
version = "0.2.88"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "7daec296f25a1bae309c0cd5c29c4b260e510e6d813c286b19eaadf409d40fce"
|
||||||
|
dependencies = [
|
||||||
|
"cfg-if",
|
||||||
|
"wasm-bindgen-macro",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "wasm-bindgen-backend"
|
||||||
|
version = "0.2.88"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "e397f4664c0e4e428e8313a469aaa58310d302159845980fd23b0f22a847f217"
|
||||||
|
dependencies = [
|
||||||
|
"bumpalo",
|
||||||
|
"log",
|
||||||
|
"once_cell",
|
||||||
|
"proc-macro2",
|
||||||
|
"quote",
|
||||||
|
"syn",
|
||||||
|
"wasm-bindgen-shared",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "wasm-bindgen-macro"
|
||||||
|
version = "0.2.88"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "5961017b3b08ad5f3fe39f1e79877f8ee7c23c5e5fd5eb80de95abc41f1f16b2"
|
||||||
|
dependencies = [
|
||||||
|
"quote",
|
||||||
|
"wasm-bindgen-macro-support",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "wasm-bindgen-macro-support"
|
||||||
|
version = "0.2.88"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "c5353b8dab669f5e10f5bd76df26a9360c748f054f862ff5f3f8aae0c7fb3907"
|
||||||
|
dependencies = [
|
||||||
|
"proc-macro2",
|
||||||
|
"quote",
|
||||||
|
"syn",
|
||||||
|
"wasm-bindgen-backend",
|
||||||
|
"wasm-bindgen-shared",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "wasm-bindgen-shared"
|
||||||
|
version = "0.2.88"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "0d046c5d029ba91a1ed14da14dca44b68bf2f124cfbaf741c54151fdb3e0750b"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "web-sys"
|
||||||
|
version = "0.3.65"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "5db499c5f66323272151db0e666cd34f78617522fb0c1604d31a27c50c206a85"
|
||||||
|
dependencies = [
|
||||||
|
"js-sys",
|
||||||
|
"wasm-bindgen",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "weezl"
|
||||||
|
version = "0.1.7"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "9193164d4de03a926d909d3bc7c30543cecb35400c02114792c2cae20d5e2dbb"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "winapi"
|
||||||
|
version = "0.3.9"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
|
||||||
|
dependencies = [
|
||||||
|
"winapi-i686-pc-windows-gnu",
|
||||||
|
"winapi-x86_64-pc-windows-gnu",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "winapi-i686-pc-windows-gnu"
|
||||||
|
version = "0.4.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "winapi-util"
|
||||||
|
version = "0.1.6"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "f29e6f9198ba0d26b4c9f07dbe6f9ed633e1f3d5b8b414090084349e46a52596"
|
||||||
|
dependencies = [
|
||||||
|
"winapi",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "winapi-x86_64-pc-windows-gnu"
|
||||||
|
version = "0.4.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows-core"
|
||||||
|
version = "0.51.1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "f1f8cf84f35d2db49a46868f947758c7a1138116f7fac3bc844f43ade1292e64"
|
||||||
|
dependencies = [
|
||||||
|
"windows-targets",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows-sys"
|
||||||
|
version = "0.48.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
|
||||||
|
dependencies = [
|
||||||
|
"windows-targets",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows-targets"
|
||||||
|
version = "0.48.5"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "9a2fa6e2155d7247be68c096456083145c183cbbbc2764150dda45a87197940c"
|
||||||
|
dependencies = [
|
||||||
|
"windows_aarch64_gnullvm",
|
||||||
|
"windows_aarch64_msvc",
|
||||||
|
"windows_i686_gnu",
|
||||||
|
"windows_i686_msvc",
|
||||||
|
"windows_x86_64_gnu",
|
||||||
|
"windows_x86_64_gnullvm",
|
||||||
|
"windows_x86_64_msvc",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_aarch64_gnullvm"
|
||||||
|
version = "0.48.5"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "2b38e32f0abccf9987a4e3079dfb67dcd799fb61361e53e2882c3cbaf0d905d8"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_aarch64_msvc"
|
||||||
|
version = "0.48.5"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "dc35310971f3b2dbbf3f0690a219f40e2d9afcf64f9ab7cc1be722937c26b4bc"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_i686_gnu"
|
||||||
|
version = "0.48.5"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "a75915e7def60c94dcef72200b9a8e58e5091744960da64ec734a6c6e9b3743e"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_i686_msvc"
|
||||||
|
version = "0.48.5"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "8f55c233f70c4b27f66c523580f78f1004e8b5a8b659e05a4eb49d4166cca406"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_x86_64_gnu"
|
||||||
|
version = "0.48.5"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "53d40abd2583d23e4718fddf1ebec84dbff8381c07cae67ff7768bbf19c6718e"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_x86_64_gnullvm"
|
||||||
|
version = "0.48.5"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "0b7b52767868a23d5bab768e390dc5f5c55825b6d30b86c844ff2dc7414044cc"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_x86_64_msvc"
|
||||||
|
version = "0.48.5"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "wio"
|
||||||
|
version = "0.2.2"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "5d129932f4644ac2396cb456385cbf9e63b5b30c6e8dc4820bdca4eb082037a5"
|
||||||
|
dependencies = [
|
||||||
|
"winapi",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "yeslogic-fontconfig-sys"
|
||||||
|
version = "3.2.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "f2bbd69036d397ebbff671b1b8e4d918610c181c5a16073b96f984a38d08c386"
|
||||||
|
dependencies = [
|
||||||
|
"const-cstr",
|
||||||
|
"dlib",
|
||||||
|
"once_cell",
|
||||||
|
"pkg-config",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "zd1"
|
||||||
|
version = "0.1.0"
|
||||||
|
dependencies = [
|
||||||
|
"plotters",
|
||||||
|
"rand",
|
||||||
|
]
|
8
Cargo.toml
Normal file
8
Cargo.toml
Normal file
|
@ -0,0 +1,8 @@
|
||||||
|
[package]
|
||||||
|
name = "zd1"
|
||||||
|
version = "0.1.0"
|
||||||
|
edition = "2021"
|
||||||
|
|
||||||
|
[dependencies]
|
||||||
|
plotters = "0.3.5"
|
||||||
|
rand = "0.8.5"
|
161
src/main.rs
Normal file
161
src/main.rs
Normal file
|
@ -0,0 +1,161 @@
|
||||||
|
use std::{ops::Range, iter};
|
||||||
|
|
||||||
|
use plotters::prelude::*;
|
||||||
|
use rand::Rng;
|
||||||
|
|
||||||
|
struct Integral<T> {
|
||||||
|
bounds: Range<T>,
|
||||||
|
function: Box<dyn Fn(T) -> T>,
|
||||||
|
}
|
||||||
|
|
||||||
|
struct Point {
|
||||||
|
x: f64,
|
||||||
|
y: f64,
|
||||||
|
}
|
||||||
|
|
||||||
|
fn rand_points(
|
||||||
|
n: u64,
|
||||||
|
x_range: &Range<f64>,
|
||||||
|
y_range: &Range<f64>,
|
||||||
|
) -> Vec<Point> {
|
||||||
|
(0..n)
|
||||||
|
.map(|_| Point {
|
||||||
|
x: rand::thread_rng().gen_range(x_range.clone()),
|
||||||
|
y: rand::thread_rng().gen_range(y_range.clone()),
|
||||||
|
})
|
||||||
|
.collect()
|
||||||
|
}
|
||||||
|
|
||||||
|
fn points_under_graph(
|
||||||
|
points: &Vec<Point>,
|
||||||
|
function: &impl Fn(f64) -> f64,
|
||||||
|
) -> u64 {
|
||||||
|
points.iter()
|
||||||
|
.map(|point| point.y <= function(point.x))
|
||||||
|
.map(|bool| if bool { 1 } else { 0 })
|
||||||
|
.sum()
|
||||||
|
}
|
||||||
|
|
||||||
|
fn get_sup(
|
||||||
|
integral: &Integral<f64>
|
||||||
|
) -> f64 {
|
||||||
|
let multiplier = 1_000f64;
|
||||||
|
let b = &integral.bounds;
|
||||||
|
let f = &integral.function;
|
||||||
|
|
||||||
|
let mut sup = f(b.start);
|
||||||
|
|
||||||
|
for i in
|
||||||
|
(((b.start * multiplier) as i64)..((b.end * multiplier) as i64))
|
||||||
|
.map(|x| (x as f64) / multiplier)
|
||||||
|
{
|
||||||
|
if f(i) > sup {
|
||||||
|
sup = f(i);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
sup
|
||||||
|
}
|
||||||
|
|
||||||
|
fn monte_carlo(
|
||||||
|
amount_of_points: u64,
|
||||||
|
integral: &Integral<f64>,
|
||||||
|
) -> f64 {
|
||||||
|
let m = get_sup(integral);
|
||||||
|
|
||||||
|
let points = rand_points(amount_of_points, &integral.bounds, &(0.0..m));
|
||||||
|
|
||||||
|
let c = points_under_graph(&points, &integral.function);
|
||||||
|
|
||||||
|
let average = (c as f64 / amount_of_points as f64) * ((integral.bounds.end - integral.bounds.start) * m);
|
||||||
|
|
||||||
|
average
|
||||||
|
}
|
||||||
|
|
||||||
|
fn graph_function(
|
||||||
|
output_path: &str,
|
||||||
|
iterations: u64,
|
||||||
|
integral: &Integral<f64>,
|
||||||
|
integral_value: f64,
|
||||||
|
) {
|
||||||
|
let root_drawing_area = BitMapBackend::new(output_path, (1920, 1080))
|
||||||
|
.into_drawing_area();
|
||||||
|
|
||||||
|
root_drawing_area.fill(&WHITE).unwrap();
|
||||||
|
|
||||||
|
let quarter = integral_value / 4.0;
|
||||||
|
|
||||||
|
let mut chart = ChartBuilder::on(&root_drawing_area)
|
||||||
|
.x_label_area_size(20)
|
||||||
|
.y_label_area_size(60)
|
||||||
|
.build_cartesian_2d(
|
||||||
|
0f64..5050f64,
|
||||||
|
(integral_value - quarter)..integral_value + quarter,
|
||||||
|
)
|
||||||
|
.unwrap();
|
||||||
|
|
||||||
|
chart.configure_mesh()
|
||||||
|
.x_labels(10)
|
||||||
|
.y_labels(10)
|
||||||
|
.draw()
|
||||||
|
.unwrap();
|
||||||
|
|
||||||
|
for n in (50..=5000).step_by(50) {
|
||||||
|
let mut results = vec![];
|
||||||
|
|
||||||
|
for _ in 0..iterations {
|
||||||
|
results.push(monte_carlo(n, &integral));
|
||||||
|
}
|
||||||
|
|
||||||
|
let average = results.iter().sum::<f64>() / (iterations as f64);
|
||||||
|
|
||||||
|
chart.draw_series(PointSeries::<_, _, Circle<_, _>, _>::new(
|
||||||
|
results.iter().map(|x| (n as f64, *x)),
|
||||||
|
2,
|
||||||
|
BLUE.filled(),
|
||||||
|
)).unwrap();
|
||||||
|
|
||||||
|
chart.draw_series(PointSeries::<_, _, Circle<_, _>, _>::new(
|
||||||
|
iter::once(average).map(|x| (n as f64, x)),
|
||||||
|
5,
|
||||||
|
RED.filled(),
|
||||||
|
)).unwrap();
|
||||||
|
|
||||||
|
chart.draw_series(LineSeries::new(
|
||||||
|
vec![(0.0, integral_value), (5050.0, integral_value)],
|
||||||
|
GREEN.stroke_width(3),
|
||||||
|
)).unwrap();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn main() {
|
||||||
|
let i0 = Integral::<f64> {
|
||||||
|
bounds: (1.0..3.0),
|
||||||
|
function: Box::new(|x| x.powi(3)),
|
||||||
|
};
|
||||||
|
graph_function("0.png", 50, &i0, 20.0);
|
||||||
|
|
||||||
|
let i1 = Integral::<f64> {
|
||||||
|
bounds: (0.0..8.0),
|
||||||
|
function: Box::new(|x| x.powf(1.0 / 3.0)),
|
||||||
|
};
|
||||||
|
graph_function("1.png", 50, &i1, 12.0);
|
||||||
|
|
||||||
|
let i2 = Integral::<f64> {
|
||||||
|
bounds: (0.0..std::f64::consts::PI),
|
||||||
|
function: Box::new(|x| x.sin()),
|
||||||
|
};
|
||||||
|
graph_function("2.png", 50, &i2, 2.0);
|
||||||
|
|
||||||
|
let i3 = Integral::<f64> {
|
||||||
|
bounds: (0.0..1.0),
|
||||||
|
function: Box::new(|x| 4.0 * x * (1.0 - x).powi(3)),
|
||||||
|
};
|
||||||
|
graph_function("3.png", 50, &i3, 0.2);
|
||||||
|
|
||||||
|
let i_pi = Integral::<f64> {
|
||||||
|
bounds: (0.0..1.0),
|
||||||
|
function: Box::new(|x| 1.0 / (1.0 - (x * x)).sqrt()),
|
||||||
|
};
|
||||||
|
graph_function("pi.png", 50, &i_pi, std::f64::consts::PI / 2.0);
|
||||||
|
}
|
Loading…
Reference in a new issue