Sha256: 7f5ef6a52c470934d5c77e3705262730f55d0439b98bbd02a2366a20d4cccc11

Contents?: true

Size: 310 Bytes

Versions: 22

Compression:

Stored size: 310 Bytes

Contents

#!/usr/bin/env ruby
require("gsl")

f = GSL::Function.alloc { |x| Math::exp(-x) }

puts("f(x) = exp(-x)");
puts("Derivative: -exp(-x)")

h = 1e-8
x = GSL::Vector.linspace(0, 5, 50)
y = f.eval(x)
dy, derr = f.deriv_central(x, h)
GSL::graph(x, y, dy, "-T X -C -g 3 -X x -L 'f(x) = exp(-x), and its derivative'")

Version data entries

22 entries across 22 versions & 4 rubygems

Version Path
gsl-2.1.0.3 examples/deriv/demo.rb
gsl-2.1.0.2 examples/deriv/demo.rb
gsl-2.1.0.1 examples/deriv/demo.rb
gsl-2.1.0 examples/deriv/demo.rb
gsl-1.16.0.6 examples/deriv/demo.rb
rb-gsl-1.16.0.5 examples/deriv/demo.rb
rb-gsl-1.16.0.4 examples/deriv/demo.rb
rb-gsl-1.16.0.3 examples/deriv/demo.rb
rb-gsl-1.16.0.3.rc1 examples/deriv/demo.rb
gsl-nmatrix-1.15.3.2 examples/deriv/demo.rb
gsl-nmatrix-1.15.3.1 examples/deriv/demo.rb
rb-gsl-1.16.0.2 examples/deriv/demo.rb
rb-gsl-1.16.0.1 examples/deriv/demo.rb
rb-gsl-1.16.0 examples/deriv/demo.rb
rb-gsl-1.15.3.2 examples/deriv/demo.rb
rb-gsl-1.15.3.1 examples/deriv/demo.rb
blackwinter-gsl-1.15.3.2 examples/deriv/demo.rb
gsl-nmatrix-1.15.3.0 examples/deriv/demo.rb
gsl-1.15.3 examples/deriv/demo.rb
gsl-1.14.7 examples/deriv/demo.rb