Sha256: 53b43a354fa245cc2d1afba21e24f3dbfc067f1fc02ad4e55808910c3395f04e
Contents?: true
Size: 569 Bytes
Versions: 22
Compression:
Stored size: 569 Bytes
Contents
#!/usr/bin/env ruby
require("gsl")
include Math
proc = Proc.new{ |x, alpha|
log(alpha*x)/sqrt(x)
}
f = GSL::Function.alloc(proc)
f.set_params(1.0)
expected = -4.0
#result, error, neval = f.integration_qags([0.0, 1.0], 0.0, 1.0e-7, 1000)
#result, error, neval = f.integration_qags([0.0, 1.0])
result, error, neval = f.qags([0.0, 1.0])
printf("result = %.18f\n", result);
printf("exact result = %.18f\n", expected);
printf("estimated error = %.18f\n", error);
printf("actual error = %.18f\n", result - expected);
printf("intervals = %d\n", neval);
Version data entries
22 entries across 22 versions & 4 rubygems