address review

stan/math/prim/fun/linspaced_array.hpp

@@ -11,7 +11,7 @@ namespace math {
 /**
  * Return an array of linearly spaced elements.
  *
- * This produces an array from low to high (included) with elements spaced
+ * This produces an array from low to high (inclusive) with elements spaced
  * as (high - low) / (K - 1). For K=1, the array will contain the high value;
  * for K=0 it returns an empty array.
  *
@@ -23,7 +23,7 @@ namespace math {
  * @throw std::domain_error if K is negative, if low is nan or infinite,
  * if high is nan or infinite, or if high is less than low.
  */
-inline std::vector<double> linspaced_array(int K, double low, double high) {
+inline std::vector<int> linspaced_array(int K, double low, double high) {
   static const char* function = "linspaced_array";
   check_nonnegative(function, "size", K);
   check_finite(function, "low", low);

stan/math/prim/fun/linspaced_int_array.hpp

@@ -11,7 +11,7 @@ namespace math {
 /**
  * Return an array of linearly spaced integers.
  *
- * This produces an array from low to high (included) with integers spaced
+ * This produces an array from low to high (inclusive) with integers spaced
  * as (high - low) / (K - 1). For K=1, the array will contain the high value;
  * for K=0 it returns an empty array.
  *
@@ -20,8 +20,7 @@ namespace math {
  * @param high largest value
  * @return An array of size K with elements linearly spaced between
  * low and high.
- * @throw std::domain_error if K is negative, if high is less than low
- * or if ().
+ * @throw std::domain_error if K is negative or high is less than low.
  */
 inline std::vector<double> linspaced_int_array(int K, int low, int high) {
   static const char* function = "linspaced_int_array";

stan/math/prim/fun/linspaced_row_vector.hpp

@@ -10,7 +10,7 @@ namespace math {
 /**
  * Return a row vector of linearly spaced elements.
  *
- * This produces a row vector from low to high (included) with elements spaced
+ * This produces a row vector from low to high (inclusive) with elements spaced
  * as (high - low) / (K - 1). For K=1, the vector will contain the high value;
  * for K=0 it returns an empty vector.
  *

stan/math/prim/fun/linspaced_vector.hpp

@@ -10,7 +10,7 @@ namespace math {
 /**
  * Return a vector of linearly spaced elements.
  *
- * This produces a vector from low to high (included) with elements spaced
+ * This produces a vector from low to high (inclusive) with elements spaced
  * as (high - low) / (K - 1). For K=1, the vector will contain the high value;
  * for K=0 it returns an empty vector.
  *