Rename initGradiant->initGrad.

include/aidge/learning/optimizer/Optimizer.hpp

@@ -49,7 +49,7 @@ public:
     virtual void setParameters(const std::vector<std::shared_ptr<Tensor>>& parameters) {
         mParameters = parameters;
         for (const auto& param : parameters) {
-            param->initGradient(); // create gradient and set it to zeros
+            param->initGrad(); // create gradient and set it to zeros
         }
     }
 

unit_tests/optimizer/Test_SGD.cpp

@@ -77,7 +77,7 @@ TEST_CASE("[learning/SGD] update", "[Optimizer][SGD]") {
             optim_tensors[i] = std::make_shared<Tensor>(dims);
             optim_tensors[i]->setBackend("cpu");
             optim_tensors[i]->getImpl()->copy(val_tensors[i].get(), size_tensors[i]);
-            optim_tensors[i]->initGradient();
+            optim_tensors[i]->initGrad();
 
             grad_tensors[i] = std::make_shared<Tensor>(dims);
             grad_tensors[i]->setBackend("cpu");