`dsyr:`procedure`xSYR`performs the symmetric rank 1 operation`A := alpha*x*x' + A`.`ALPHA`is a scalar,`X`is an`N`element vector, and`A`is an`N x N`symmetric matrix.

`dsyr:`procedure`xSYR`performs the symmetric rank 1 operation`A := alpha*x*x' + A`.`ALPHA`is a scalar,`X`is an`N`element vector, and`A`is an`N x N`symmetric matrix.