diff --git a/lib/node_modules/@stdlib/blas/base/sspmv/lib/ndarray.js b/lib/node_modules/@stdlib/blas/base/sspmv/lib/ndarray.js
index 2b88c58748cd..a287a0107e83 100644
--- a/lib/node_modules/@stdlib/blas/base/sspmv/lib/ndarray.js
+++ b/lib/node_modules/@stdlib/blas/base/sspmv/lib/ndarray.js
@@ -24,7 +24,7 @@ var sfill = require( '@stdlib/blas/ext/base/sfill' ).ndarray;
 var sscal = require( '@stdlib/blas/base/sscal' ).ndarray;
 var f32 = require( '@stdlib/number/float64/base/to-float32' );
 var isLayout = require( '@stdlib/blas/base/assert/is-layout' );
-var isMatrixTriangle = require( '@stdlib/blas/base/assert/is-matrix-triangle' );
+var resolveStr = require( '@stdlib/blas/base/matrix-triangle-resolve-str' );
 var isRowMajor = require( '@stdlib/ndarray/base/assert/is-row-major-string' );
 var isColumnMajor = require( '@stdlib/ndarray/base/assert/is-column-major-string' );
 
@@ -35,7 +35,7 @@ var isColumnMajor = require( '@stdlib/ndarray/base/assert/is-column-major-string
 * Performs the matrix-vector operation `y = alpha*A*x + beta*y` where `alpha` and `beta` are scalars, `x` and `y` are `N` element vectors, and `A` is an `N` by `N` symmetric matrix supplied in packed form.
 *
 * @param {string} order - storage layout
-* @param {string} uplo - specifies whether the upper or lower triangular part of the symmetric matrix `A` is supplied
+* @param {(integer|string)} uplo - specifies whether the upper or lower triangular part of the symmetric matrix `A` is supplied
 * @param {NonNegativeInteger} N - number of elements along each dimension of `A`
 * @param {number} alpha - scalar constant
 * @param {Float32Array} AP - packed form of a symmetric matrix `A`
@@ -75,11 +75,13 @@ function sspmv( order, uplo, N, alpha, AP, x, strideX, offsetX, beta, y, strideY
 	var ky;
 	var j;
 	var k;
+	var u;
 
 	if ( !isLayout( order ) ) {
 		throw new TypeError( 'invalid argument. First argument must be a valid order. Value: `%s`.', order );
 	}
-	if ( !isMatrixTriangle( uplo ) ) {
+	u = resolveStr( uplo );
+	if ( u === null ) {
 		throw new TypeError( 'invalid argument. Second argument must specify whether the lower or upper triangular matrix is supplied. Value: `%s`.', uplo );
 	}
 	if ( N < 0 ) {
@@ -110,8 +112,8 @@ function sspmv( order, uplo, N, alpha, AP, x, strideX, offsetX, beta, y, strideY
 	ky = offsetY;
 	kk = 0;
 	if (
-		( isRowMajor( order ) && uplo === 'upper' ) ||
-		( isColumnMajor( order ) && uplo === 'lower' )
+		( isRowMajor( order ) && u === 'upper' ) ||
+		( isColumnMajor( order ) && u === 'lower' )
 	) {
 		jx = kx;
 		jy = ky;
@@ -134,7 +136,7 @@ function sspmv( order, uplo, N, alpha, AP, x, strideX, offsetX, beta, y, strideY
 		}
 		return y;
 	}
-	// ( order === 'row-major' && uplo === 'lower') || ( order === 'column-major' && uplo === 'upper' )
+	// ( order === 'row-major' && u === 'lower') || ( order === 'column-major' && u === 'upper' )
 	jx = kx;
 	jy = ky;
 	for ( j = 0; j < N; j++ ) {
diff --git a/lib/node_modules/@stdlib/blas/base/sspmv/lib/sspmv.js b/lib/node_modules/@stdlib/blas/base/sspmv/lib/sspmv.js
index 112cbce9d642..b734c42af285 100644
--- a/lib/node_modules/@stdlib/blas/base/sspmv/lib/sspmv.js
+++ b/lib/node_modules/@stdlib/blas/base/sspmv/lib/sspmv.js
@@ -24,7 +24,7 @@ var sfill = require( '@stdlib/blas/ext/base/sfill' );
 var sscal = require( '@stdlib/blas/base/sscal' );
 var f32 = require( '@stdlib/number/float64/base/to-float32' );
 var isLayout = require( '@stdlib/blas/base/assert/is-layout' );
-var isMatrixTriangle = require( '@stdlib/blas/base/assert/is-matrix-triangle' );
+var resolveStr = require( '@stdlib/blas/base/matrix-triangle-resolve-str' );
 var isRowMajor = require( '@stdlib/ndarray/base/assert/is-row-major-string' );
 var isColumnMajor = require( '@stdlib/ndarray/base/assert/is-column-major-string' );
 
@@ -35,7 +35,7 @@ var isColumnMajor = require( '@stdlib/ndarray/base/assert/is-column-major-string
 * Performs the matrix-vector operation `y = alpha*A*x + beta*y` where `alpha` and `beta` are scalars, `x` and `y` are `N` element vectors, and `A` is an `N` by `N` symmetric matrix supplied in packed form.
 *
 * @param {string} order - storage layout
-* @param {string} uplo - specifies whether the upper or lower triangular part of the symmetric matrix `A` is supplied
+* @param {(integer|string)} uplo - specifies whether the upper or lower triangular part of the symmetric matrix `A` is supplied
 * @param {NonNegativeInteger} N - number of elements along each dimension of `A`
 * @param {number} alpha - scalar constant
 * @param {Float32Array} AP - packed form of a symmetric matrix `A`
@@ -74,11 +74,13 @@ function sspmv( order, uplo, N, alpha, AP, x, strideX, beta, y, strideY ) {
 	var sy;
 	var j;
 	var k;
+	var u;
 
 	if ( !isLayout( order ) ) {
 		throw new TypeError( 'invalid argument. First argument must be a valid order. Value: `%s`.', order );
 	}
-	if ( !isMatrixTriangle( uplo ) ) {
+	u = resolveStr( uplo );
+	if ( u === null ) {
 		throw new TypeError( 'invalid argument. Second argument must specify whether the lower or upper triangular matrix is supplied. Value: `%s`.', uplo );
 	}
 	if ( N < 0 ) {
@@ -121,8 +123,8 @@ function sspmv( order, uplo, N, alpha, AP, x, strideX, beta, y, strideY ) {
 	// Form: y = alpha*A*x + y
 	kk = 0;
 	if (
-		( isRowMajor( order ) && uplo === 'upper' ) ||
-		( isColumnMajor( order ) && uplo === 'lower' )
+		( isRowMajor( order ) && u === 'upper' ) ||
+		( isColumnMajor( order ) && u === 'lower' )
 	) {
 		jx = kx;
 		jy = ky;
@@ -145,7 +147,7 @@ function sspmv( order, uplo, N, alpha, AP, x, strideX, beta, y, strideY ) {
 		}
 		return y;
 	}
-	// ( order === 'row-major' && uplo === 'lower') || ( order === 'column-major' && uplo === 'upper' )
+	// ( order === 'row-major' && u === 'lower') || ( order === 'column-major' && u === 'upper' )
 	jx = kx;
 	jy = ky;
 	for ( j = 0; j < N; j++ ) {