trace

Matrix trace.

📝 Syntax

• res = trace(x)

📥 Input argument

• x - a numeric value: scalar or matrix (double or single)

📤 Output argument

• res - a numeric value: a scalar

📄 Description

trace(x) computes the trace of x, the sum of the elements along the main diagonal.

💡 Example

X = [1 0; 0 3];
Y = trace(X)

🔗 See also

eig.

🕔 History

Version	📄 Description
1.0.0	initial version