Added DoubleAsStringWithPrecision function - Single Qubit Gate (#1884)

Added DoubleAsStringWithPrecision function to Single Qubit Gate Kata

This is to address the issue #1788

katas/content/single_qubit_gates/amplitude_change/Verification.qs

@@ -14,8 +14,9 @@ namespace Kata.Verification {
             let reference = register => AmplitudeChange(alpha, register[0]);
             let isCorrect = CheckOperationsAreEqualStrict(1, solution, reference);
             if not isCorrect {
+                let precision = 3;
                 Message("Incorrect.");
-                Message($"The solution was incorrect for the test case alpha = {alpha}.");
+                Message($"The solution was incorrect for the test case alpha = {DoubleAsStringWithPrecision(alpha, precision)}.");
                 Message("Hint: examine the effect your solution has on the state 0.6|0〉 + 0.8|1〉 and compare it with the effect it " +
                 "is expected to have.");
                 ShowQuantumStateComparison(1, qs => Ry(ArcTan2(0.8, 0.6) * 2.0, qs[0]), solution, reference);

katas/content/single_qubit_gates/complex_phase/Verification.qs

@@ -14,8 +14,9 @@ namespace Kata.Verification {
             let reference = register => PhaseChange(alpha, register[0]);
             let isCorrect = CheckOperationsAreEqualStrict(1, solution, reference);
             if not isCorrect {
+                let precision = 3;
                 Message("Incorrect.");
-                Message($"The solution was incorrect for the test case alpha = {alpha}.");
+                Message($"The solution was incorrect for the test case alpha = {DoubleAsStringWithPrecision(alpha, precision)}.");
                 Message("Hint: examine the effect your solution has on the state 0.6|0〉 + 0.8|1〉 and compare it with the effect it " +
                 "is expected to have.");
                 ShowQuantumStateComparison(1, qs => Ry(ArcTan2(0.8, 0.6) * 2.0, qs[0]), solution, reference);

katas/content/single_qubit_gates/prepare_arbitrary_state/Verification.qs

@@ -19,8 +19,9 @@ namespace Kata.Verification {
             let reference = register => PrepareArbitraryState(alpha, beta, theta, register[0]);
             let isCorrect = CheckOperationsEquivalenceOnZeroStateStrict(solution, reference, 1);
             if not isCorrect {
+                let precision = 3;
                 Message("Incorrect.");
-                Message($"The solution was incorrect for the test case alpha = {alpha}, beta = {beta}, theta = {theta}.");
+                Message($"The solution was incorrect for the test case alpha = {DoubleAsStringWithPrecision(alpha, precision)}, beta = {DoubleAsStringWithPrecision(beta, precision)}, theta = {DoubleAsStringWithPrecision(theta, precision)}.");
                 Message("Hint: examine the state prepared by your solution and compare it with the state it " +
                     "is expected to prepare.");
                 ShowQuantumStateComparison(1, qs => (), solution, reference);

katas/content/single_qubit_gates/prepare_rotated_state/Verification.qs

@@ -17,8 +17,9 @@ namespace Kata.Verification {
             let reference = register => PrepareRotatedState(alpha, beta, register[0]);
             let isCorrect = CheckOperationsEquivalenceOnZeroStateStrict(solution, reference, 1);
             if not isCorrect {
+                let precision = 3;
                 Message("Incorrect.");
-                Message($"The solution was incorrect for the test case alpha = {alpha}, beta = {beta}.");
+                Message($"The solution was incorrect for the test case alpha = {DoubleAsStringWithPrecision(alpha, precision)}, beta = {DoubleAsStringWithPrecision(beta, precision)}.");
                 Message("Hint: examine the state prepared by your solution and compare it with the state it " +
                     "is expected to prepare.");
                 ShowQuantumStateComparison(1, qs => (), solution, reference);