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Fix a bug in system_test.cc

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Fix an error in the cost functor for Powell's function.
Reported by William Gandler.

Change-Id: I4ffbbca3b3731aa13c3608067baaebd06c1a044a
This commit is contained in:
Sameer Agarwal
2021-08-15 16:44:15 -07:00
parent d4eb83ee58
commit 27fade7b8c
1 changed files with 4 additions and 4 deletions
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internal/ceres/system_test.cc
+4 -4
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@@ -97,7 +97,7 @@ class PowellsFunction {
template <typename T>
bool operator()(const T* const x1, const T* const x2, T* residual) const {
// f1 = x1 + 10 * x2;
*residual = *x1 + 10.0 * *x2;
*residual = x1[0] + 10.0 * x2[0];
return true;
}
};
@@ -107,7 +107,7 @@ class PowellsFunction {
template <typename T>
bool operator()(const T* const x3, const T* const x4, T* residual) const {
// f2 = sqrt(5) (x3 - x4)
*residual = sqrt(5.0) * (*x3 - *x4);
*residual = sqrt(5.0) * (x3[0] - x4[0]);
return true;
}
};
@@ -115,9 +115,9 @@ class PowellsFunction {
class F3 {
public:
template <typename T>
bool operator()(const T* const x2, const T* const x4, T* residual) const {
bool operator()(const T* const x2, const T* const x3, T* residual) const {
// f3 = (x2 - 2 x3)^2
residual[0] = (x2[0] - 2.0 * x4[0]) * (x2[0] - 2.0 * x4[0]);
residual[0] = (x2[0] - 2.0 * x3[0]) * (x2[0] - 2.0 * x3[0]);
return true;
}
};