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Round a numeric value to the nearest number toward zero with
nsignificant figures.
import truncsd from 'https://cdn.jsdelivr.net/gh/stdlib-js/math-base-special-truncsd@deno/mod.js';Rounds a numeric value to the nearest number toward zero with n significant figures.
var v = truncsd( 3.141592653589793, 5, 10 );
// returns 3.1415
v = truncsd( 3.141592653589793, 1, 10 );
// returns 3.0
v = truncsd( 12368.0, 2, 10 );
// returns 12000.0
v = truncsd( 0.0313, 2, 2 );
// returns 0.03125import randu from 'https://cdn.jsdelivr.net/gh/stdlib-js/random-base-randu@deno/mod.js';
import truncsd from 'https://cdn.jsdelivr.net/gh/stdlib-js/math-base-special-truncsd@deno/mod.js';
var x;
var y;
var i;
for ( i = 0; i < 100; i++ ) {
x = (randu()*10000.0) - 5000.0;
y = truncsd( x, 5, 10 );
console.log( 'x: %d. Rounded: %d.', x, y );
}@stdlib/math-base/special/ceilsd: round a numeric value to the nearest number toward positive infinity with N significant figures.@stdlib/math-base/special/floorsd: round a numeric value to the nearest number toward negative infinity with N significant figures.@stdlib/math-base/special/roundsd: round a numeric value to the nearest number with N significant figures.@stdlib/math-base/special/trunc: round a double-precision floating-point number toward zero.
This package is part of stdlib, a standard library with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.
For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.
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