small fixes

Author: lkdvos

src/algorithms/derivatives/mpo_derivatives.jl

@@ -171,7 +171,9 @@ function (H::PrecomputedDerivative)(x::AbstractTensorMap)
 
 
     TC = TensorOperations.promote_contract(scalartype(x_fused), scalartype(R_fused))
-    xR = TensorOperations.tensoralloc_contract(TC, x_fused, ((1,), (2,)), false, R_fused, ((1,), (2, 3)), false, ((1, 2), (3,)), Val(true), H.allocator)
+    xR = TensorOperations.tensoralloc_contract(
+        TC, x_fused, ((1,), (2,)), false, R_fused, ((1,), (2, 3)), false, ((1, 2), (3,)), Val(true), H.allocator
+    )
 
     mul_front!(xR, x_fused, R_fused, One(), Zero(), H.backend, H.allocator)
 

src/utility/utility.jl

@@ -233,7 +233,7 @@ end
 
 function mul_front(
         A::AbstractTensorMap, B::AbstractTensorMap,
-        α::Number,
+        α::Number = One(),
         backend::AbstractBackend = DefaultBackend(), allocator = DefaultAllocator()
     )
     cod = prod(i -> i == 1 ? space(A, 1) : space(B, i), 1:numout(B))
@@ -245,7 +245,7 @@ end
 
 function mul_front!(
         C::AbstractTensorMap, A::AbstractTensorMap, B::AbstractTensorMap,
-        α::Number, β::Number,
+        α::Number = One(), β::Number = Zero(),
         backend::AbstractBackend = DefaultBackend(), allocator = DefaultAllocator()
     )
     (numin(C) == numin(B) && numout(C) == numout(B) && numin(A) == numout(A) == 1) ||
@@ -281,7 +281,7 @@ end
 
 function mul_tail(
         A::AbstractTensorMap, B::AbstractTensorMap,
-        α::Number,
+        α::Number = One(),
         backend::AbstractBackend = DefaultBackend(), allocator = DefaultAllocator()
     )
     cod = codomain(A)
@@ -293,7 +293,7 @@ end
 
 function mul_tail!(
         C::AbstractTensorMap, A::AbstractTensorMap, B::AbstractTensorMap,
-        α::Number, β::Number,
+        α::Number = One(), β::Number = Zero(),
         backend::AbstractBackend = DefaultBackend(), allocator = DefaultAllocator()
     )
     (numin(C) == numin(A) && numout(C) == numout(A) && numin(B) == numout(B) == 1) ||