He has a dream of going to the South Pole.

The Winter Triangle is shining in the night sky.

Finding the Summer Triangle is helpful for remembering constellations.

A lower triangular matrix is a matrix where all the elements below the main diagonal are zero.

In linear algebra, the upper triangular matrix plays a very important role.

Our company has started making profits beyond the break-even point.

I learned the meaning of 'ichi ni ten' in the classical Japanese class.

His glasses are for correcting astigmatism.

He can do a perfect handstand.

He is good at one-point reading in shogi.