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Fixed formatting of scientific notation, closes #81

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PaddiM8 2021-12-31 23:36:57 +01:00
parent 39673bc647
commit 5f40e7202e
1 changed files with 9 additions and 31 deletions
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40
kalk/src/kalk_num/mod.rs
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@ -53,7 +53,7 @@ lazy_static! {
#[derive(Clone)]
pub struct ScientificNotation {
pub negative: bool,
pub(crate) digits: String,
pub value: f64,
pub exponent: i32,
pub imaginary: bool,
}
@ -69,21 +69,13 @@ pub enum ComplexNumberType {
impl ScientificNotation {
#[wasm_bindgen(js_name = toString)]
pub fn to_string(&self) -> String {
if self.digits == "" {
return String::from("0");
}
let sign = if self.negative { "-" } else { "" };
let mut digits_and_mul = if self.digits == "1" {
let digits_and_mul = if self.value == 1f64 {
String::new()
} else {
format!("{}×", &self.digits)
format!("{}×", format_number(self.value))
};
if self.digits.len() > 1 {
digits_and_mul.insert(1usize, '.');
}
format!(
"{}{}10^{} {}",
sign,
@ -107,31 +99,17 @@ impl KalkNum {
&self,
complex_number_type: ComplexNumberType,
) -> ScientificNotation {
let value_string = match complex_number_type {
ComplexNumberType::Real => self.to_string_real(10),
ComplexNumberType::Imaginary => self.to_string_imaginary(10, false),
}
.trim_start_matches("-")
.to_string();
let trimmed = if value_string.contains(".") {
value_string.trim_end_matches("0")
} else {
&value_string
};
let value = match complex_number_type {
ComplexNumberType::Real => &self.value,
ComplexNumberType::Imaginary => &self.imaginary_value,
ComplexNumberType::Real => self.to_f64(),
ComplexNumberType::Imaginary => self.imaginary_to_f64(),
};
let exponent = value.clone().abs().log10().floor() as i32 + 1;
ScientificNotation {
negative: value < &0f64,
digits: trimmed
.to_string()
.replace(".", "")
.trim_start_matches("0")
.to_string(),
negative: value < 0f64,
value: value / (10f64.pow(exponent - 1) as f64),
// I... am not sure what else to do...
exponent: KalkNum::new(value.clone().abs().log10() + 1f64, "").to_i32(),
exponent,
imaginary: complex_number_type == ComplexNumberType::Imaginary,
}
}