Dear Sir,

I have been using TeXmacs software for creating maths tutorials. It works fine. Thanks for developing such a software. 

I have a difficulty while creating tutorials on metrix. We  generally write a matrix with square brackets enclosing the rows and columns. TeXmacx  software automatically generates rounded brackets for any matrix, instead of square brackets. 

Is there any way that I can create square brackets for the matrix? 

Best Regards,

Vilas Bhadkamkar