triangular part

tri·an·gu·lar part

the middle one of three small convolutions that together compose the inferior frontal gyrus of the cerebral cortex, the other two being the orbital part and opercular part.
Synonym(s): pars triangularis [TA]
References in periodicals archive ?
ii] (only the upper triangular part is stored, since the submatrices are symmetric).
T] + [Beta] C where only the upper triangular part of C is updated):
A first step consists of removing the low rank part in the lower triangular part of the matrix.
Since C is symmetric and stored as an upper triangular matrix in this case, it is only necessary to compute the upper triangular part of the matrix operations [Alpha][AB.
This reduction in complexity is related to the structure in the lower triangular part, as the following example shows:
Observe that the matrix F is such that any submatrix contained in the lower triangular part of F has rank at most 1.
A figure with a rectangular number of small squares can be formed by placing together two identical triangular parts of the staircases shown in Figure 3 to produce Figure 8.
According to her, natural hair can also be styled into Bantu knots, which involves sectioning the hair with square or triangular parts and fastening it into tight knots on the head.
The plate is divided into 4 triangular parts, which extend from the point of impact to the corners of the plate.
large wooden umbrella: This structure divides naturally into eight triangular parts, each individual shape starts at approximately 2" (5 cm) wide, closest to the pole, and expands to 27" (69 cm) wide at the outside edge.