Collaboration diagram for MinTest:

Public Member Functions
	MinTest (double value=0.0)

RealType	one_cycle (RealType x)

void	find_bracket (RealType x0)

void	find_bracket_bound (RealType x0, RealType bound)

void	find_min (RealType x0)

Public Attributes
RealType	min_value

Detailed Description

Definition at line 24 of file test_min_oned.cpp.

Constructor & Destructor Documentation

◆ MinTest()

MinTest ( double value = 0.0 )

inline

Definition at line 27 of file test_min_oned.cpp.

27 : min_value(value) {}

qmcplusplus::MinTest::min_value

RealType min_value

Definition: test_min_oned.cpp:28

Member Function Documentation

◆ find_bracket()

void find_bracket ( RealType x0 )

inline

Definition at line 31 of file test_min_oned.cpp.

References bracket_minimum(), MinTest::one_cycle(), and qmcplusplus::REQUIRE().

Referenced by qmcplusplus::TEST_CASE().

   {
     auto bracket = bracket_minimum([this](RealType x) -> RealType { return one_cycle(x); }, x0);
     REQUIRE(bracket.success == true);
     RealType xa = bracket.a;
     RealType xb = bracket.b;
     RealType xc = bracket.c;
     //std::cout << " xa = " << xa;
     //std::cout << " xb = " << xb;
     //std::cout << " xc = " << xc;
     //std::cout << std::endl;
 
     REQUIRE(xa < xb);
     REQUIRE(xb < xc);
 
     // For a starting point of 1.3
     //CHECK(xa == Approx(-0.0041));
     //CHECK(xb == Approx( 0.03615));
     //CHECK(xc == Approx(-0.04435));
 
 
     RealType fa = one_cycle(xa);
     RealType fb = one_cycle(xb);
     RealType fc = one_cycle(xc);
 
     REQUIRE(fa > fb);
     REQUIRE(fc > fb);
   }

◆ find_bracket_bound()

void find_bracket_bound	(	RealType	x0,
		RealType	bound
	)

inline

Definition at line 61 of file test_min_oned.cpp.

References bracket_minimum(), MinTest::one_cycle(), and qmcplusplus::REQUIRE().

Referenced by qmcplusplus::TEST_CASE().

   {
     auto bracket = bracket_minimum([this](RealType x) -> RealType { return one_cycle(x); }, x0, bound);
     REQUIRE(bracket.success == false);
   }

◆ find_min()

void find_min ( RealType x0 )

inline

Definition at line 67 of file test_min_oned.cpp.

References bracket_minimum(), qmcplusplus::CHECK(), find_minimum(), qmcplusplus::Units::distance::m, MinTest::min_value, and MinTest::one_cycle().

Referenced by qmcplusplus::TEST_CASE().

   {
     auto bracket = bracket_minimum([this](RealType x) -> RealType { return one_cycle(x); }, x0);
     auto m       = find_minimum([this](RealType x) -> RealType { return one_cycle(x); }, bracket);
 
     CHECK(m.first == Approx(min_value));
     CHECK(m.second == Approx(0.0));
   }