function objects for testing Graph#draw_func with functions for which the accuracy of the functions is enforced
[Source]
# File graph.rb, line 236 236: def initialize(n = R.prec) 237: @precMem = R.prec 238: @precLoc = n 239: end
# File graph.rb, line 241 241: def at(x) 242: R.prec = @precLoc 243: y = x.sin 244: R.prec = @precMem; y 245: end
[Validate]