math
The math module is used to provide a helper for high-precision calculations and scientific computing.
Usage
All the following modules are exposed in mod.ts
Big
A class for high-precision calculations.
import { Big } from "https://deno.land/x/[email protected]/mod.ts";
new Big(0.1).plus(0.2).toString(); // '0.3'Matrix
A class for Matrix computing.
import { Matrix } from "https://deno.land/x/[email protected]/mod.ts";
const m = new Matrix([
[1, 2, 3],
[4, 5, 6]
]).transpose();
console.log(m.toString());
/**
1, 4
2, 5
3, 6
*/abs
get a numeric absolute value.
import { abs } from "https://deno.land/x/[email protected]/mod.ts";
abs(-1); // '1'
abs("-0.1"); // '0.1'min
get a smaller numeric from a numeric set. Similar to Math.min.
import { min } from "https://deno.land/x/[email protected]/mod.ts";
min([-1, 0, "1"]); // '-1'max
get a larger numeric from a numeric set. Similar to Math.max.
import { max } from "https://deno.land/x/[email protected]/mod.ts";
max([-1, 0, "1"]); // '1'sum
get the sum of a numeric set.
import { sum } from "https://deno.land/x/[email protected]/mod.ts";
sum([1, "2", 3]); // '6'plus
get the value of a numeric plus another numeric. Similar to Javascript + operator.
import { plus } from "https://deno.land/x/[email protected]/mod.ts";
plus("1", 2); // '3'minus
get the value of a numeric minus another numeric. Similar to Javascript - operator.
import { minus } from "https://deno.land/x/[email protected]/mod.ts";
minus("1", 2); // '-1'times
get the value of a numeric times another numeric. Similar to Javascript * operator.
import { times } from "https://deno.land/x/[email protected]/mod.ts";
times("1", 2); // '2'div
get the value of a numeric divided another numeric. Similar to Javascript / operator.
import { div } from "https://deno.land/x/[email protected]/mod.ts";
div("1", 2); // '0.5'mod
get the value of a numeric modulo another numeric. Similar to Javascript % operator.
import { mod } from "https://deno.land/x/[email protected]/mod.ts";
mod("3", 2); // '1'pow
get the value of a numeric raised to the power another numeric. Similar to Math.pow.
import { pow } from "https://deno.land/x/[email protected]/mod.ts";
pow("3", 2); // '9'sqrt
get the value is the square root of a numeric. Similar to Math.sqrt.
import { sqrt } from "https://deno.land/x/[email protected]/mod.ts";
sqrt("3", 2); // '1.7320508075688772'round
get the value of input rounded using rounding mode rm to a maximum of dp decimal places. Similar to Math.round.
import { round } from "https://deno.land/x/[email protected]/mod.ts";
round("3.456", 2); // '3.46'toExponential
get an exponential notation string from a numeric. Similar to Number.prototype.toExponential.
import { toExponential } from "https://deno.land/x/[email protected]/mod.ts";
toExponential("3.456", 2); // '3.46e+0'toFixed
get a normal notation string from a numeric. Similar to Number.prototype.toFixed.
import { toFixed } from "https://deno.land/x/[email protected]/mod.ts";
toFixed("3.4", 6); // '3.400000'toPrecision
get the value of a numeric to the specified number of sd significant digits. Similar to Number.prototype.toPrecision.
import { toPrecision } from "https://deno.land/x/[email protected]/mod.ts";
toPrecision("3.4567890", 6); // '3.456789'eq
Where a numeric equal to another numeric. Similar to Javascript === operator.
import { eq } from "https://deno.land/x/[email protected]/mod.ts";
eq("1.200", "1.2e+0"); // truegt
Where a numeric greater than another numeric. Similar to Javascript > operator.
import { gt } from "https://deno.land/x/[email protected]/mod.ts";
gt(2, "1"); // truegte
Where a numeric greater than or equal to another numeric. Similar to Javascript >= operator.
import { gte } from "https://deno.land/x/[email protected]/mod.ts";
gte(2, "1"); // true
gte(2, "2"); // true
gte(2, "3"); // falselt
Where a numeric less than another numeric. Similar to Javascript < operator.
import { lt } from "https://deno.land/x/[email protected]/mod.ts";
lt(2, "1"); // false
lt(2, "2"); // false
lt(2, "3"); // falselte
Where a numeric less than or equal to another numeric. Similar to Javascript <= operator.
import { lte } from "https://deno.land/x/[email protected]/mod.ts";
lte(2, "1"); // false
lte(2, "2"); // true
lte(2, "3"); // false