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Compute the half-value versed cosine.
The half-value versed cosine is defined as
import havercos from 'https://cdn.jsdelivr.net/gh/stdlib-js/math-base-special-havercos@esm/index.mjs';Computes the half-value versed cosine (in radians).
var v = havercos( 0.0 );
// returns 1.0
v = havercos( 3.141592653589793/2.0 );
// returns 0.5
v = havercos( -3.141592653589793/6.0 );
// returns ~0.9330<!DOCTYPE html>
<html lang="en">
<body>
<script type="module">
import linspace from 'https://cdn.jsdelivr.net/gh/stdlib-js/array-base-linspace@esm/index.mjs';
import TWO_PI from 'https://cdn.jsdelivr.net/gh/stdlib-js/constants-float64-two-pi@esm/index.mjs';
import havercos from 'https://cdn.jsdelivr.net/gh/stdlib-js/math-base-special-havercos@esm/index.mjs';
var x = linspace( 0.0, TWO_PI, 100 );
var i;
for ( i = 0; i < x.length; i++ ) {
console.log( havercos( x[ i ] ) );
}
</script>
</body>
</html>@stdlib/math-base/special/haversin: compute the half-value versed sine.@stdlib/math-base/special/vercos: compute the versed cosine.
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