tensorflow/contrib/solvers. Initial version has lanczos bidiagonalization,
    conjugate gradients and CGLS.
*   Added gradients for `matrix_solve_ls` and `self_adjoint_eig`.
*   Large cleanup to add second order gradient for ops with C++ gradients and
    improve existing gradients such that most ops can now be differentiated
    multiple times.
*   Added a solver for ordinary differential equations,

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rgba($color, .25);\n        }\n      }\n    }\n  }\n}\n","// Gradients\n\n@mixin gradient-bg($color) {\n  @if $enable-gradients {\n    background: $color linear-gradient(180deg, mix($body-bg, $color, 15%), $color) repeat-x;\n  } @else {\n    background-color: $color;\n  }\n}\n\n// Horizontal gradient, from left to right\n//\n// Creates two color stops, start and end, by specifying a color and position for each color stop.\n@mixin gradient-x($start-color: $gray-700, $end-color: $gray-800, $start-percent:...